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July 15, 2017

    Edited variables.

    • AGEMARR was edited to add data for Hungary 1980 and 1990.

April 19, 2017

    New samples.

    • Twenty-four new samples for Belarus, Botswana, Canada, China, Egypt, Greece, Hungary, India, Iran, Mexico Poland, Romania, Tanzania, and Trinidad and Tobago were added to the data series. Botswana, Poland, and Trinidad and Tobago are new countries in IPUMS. The samples for Belarus, Canada, China, Egypt, Greece, Hungary, India, Iran, Mexico, Romania, and Tanzania extend the pre-existing data series for those countries.

    New variables.

    • IPUMS-International now includes harmonized second-level geography variables for 70 countries. New first-level and second-level year specific geography variables are also available for many countries. IPUMS provides corresponding, downloadable GIS boundary files for all harmonized and year specific geography variables. More information about IPUMS geography variables is available here

    Edited variables.

    • Harmonized geography variables for Iran, Mexico, and Tanzania have been edited to accommodate new samples. Likewise, harmonized geography variables for Malawi have been edited to accommodate recently acquired boundary information for the 1987 sample. Users should be aware that codes and labels have changed in all harmonized and year specific geography varaibles for these countries.
    • EDATTAIN for Brazil 2010 was edited to identify individuals who never attended school (code 110).
    • ETHNICSN for Senegal 1988 and 2002 was edited to correct a label error. The label for code 113 was changed from "Wolof" to "Khassonke".
    • CHDEAD was edited to remove data for Armenia 2001, Armenia 2011, Costa Rica 2011, Mozambique 1992, and Mozambique 2007. These data had been calculated by subtracting CHSURV from CHBORN. As a rule, we only include samples that directly reported total child deaths in CHDEAD.
    • Errors affecting the family interrelationship pointer variables in all Zambia samples were corrected.

March 25, 2016

    Edited variables.

    • Values reported in MOMLOC and POPLOC for Spain 2011 were modified to correct previously erroneous data.

December 1, 2015

    Edited variables.

    • An error in LIT for Senegal 2002 was corrected. The values for yes and no had been reversed.

October 8, 2015

    Expanded variables.

    • PERSONS was expanded to include the following samples: Armenia 2011; Austria 2011; Costa Rica 2011; Ethiopia 1984, 1994, 2007; France 2011; Ghana 1984; Mozambique 1997, 2007; Paraguay 1962, 1972, 1982, 1992, 2002; Portugal 2011; Puerto Rico 2010; South Africa 2011; Spain 2011.
    • YRIMM was expanded to include Spain 2011.

September 1, 2015

    New samples.

    • Nineteen new samples for Armenia, Austria, Costa Rica, Ethiopia, France, Ghana, Mozambique, Paraguay, Portugal, Puerto Rico, South Africa, and Spain were added to the data series. Ethiopia, Mozambique, and Paraguay were newly added countries to IPUMS. Samples for other countries extend pre-existing series for those countries.

    New variables.

    • IPUMS-International has continued to improve geography, providing harmonized geographic units for the second administrative level for roughly half the countries. The revisions to geography are expected to be completed by summer 2016. More information about IPUMS geography variables is available here.

    Edited variables.

    • IPUMS-International renamed approximately 100 integrated variables, expanding them to be somewhat more consistent and intuitive. Affected variables with their current and previous names are listed here. Geography variable also underwent wholesale renaming. We apologize for any inconvenience to users posed by these changes.

July 1, 2014

    New variables.

    • IPUMS-International has revised the geographic variables, introducing first-level harmonized subnational geography for all countries, along with associated GIS boundary files. Pre-existing geography variables were renamed to conform to a more systematic naming convention intended to distinguish harmonized and unharmonized variables at the first and second administrative levels.

    New samples.

    • Twenty new samples for Dominican Republic, Ghana, Ireland, Liberia, Mali, Nigeria, Ukraine, Uruguay, and Zambia were added to the data series. The samples for Ghana, Ireland, Mali, and Uruguay extend the pre-existing series for those countries.

July 1, 2013

    New samples.

    • Twenty-seven new samples for Argentina, Bangladesh, Brazil, Burkina Faso, Cameroon, Ecuador, Fiji, Haiti, Kenya, Krygyz Republic, Panama, South Sudan, and the United States were added to the data series. The South Sudan sample contains records that were formerly part of the Sudan 2008 sample, but which are now treated as a separate country.

    New variables.

    • Data from four recent censuses from Brazil, Ecuador, Haiti, and Panama that record individual mortality and/or migration events were made available from IPUMS-International. These files can be downloaded and linked to data produced by the extract system.

June 1, 2012

    New samples.

    • Twenty-six new samples for El Salvador, Indonesia, Mexico, Morocco, Nicaragua, Turkey, and Uruguay were added to the data series. The sample for Mexico extends the pre-existing series for that country.

    New variables.

    • The data release also added 40 new harmonized variables and approximately 2300 unharmonized variables specific to the individual samples.

August 1, 2011

    New features.

    • IPUMS-International significantly redesigned the extract process in the web dissemination system. The new process is far more streamlined, relegating the numerous steps in the old system to a list of options that users can choose to ignore.

June 1, 2011

    New samples.

    • Twenty-six new samples for Cambodia, Egypt, France, Germany, Iran, Ireland, Jamaica, Malawi, Palestine, Sierra Leone, Sudan, and Vietnam were added to the data series. The samples for Cambodia, Egypt, France, Palestine and Vietnam extend pre-existing series for those countries.

    New variables.

    • The data release also added 40 new harmonized variables and approximately 2100 unharmonized variables specific to the individual samples.

February 1, 2011

    New features.

    • IPUMS-International introduced a new version of the web user interface for browsing variables and creating data extracts. The new system is explicitly designed around the concept of a "data cart" one adds to while browsing and from which one "checks out" to generate a data extract. We continue to develop new features based on this design.

July 1, 2010

    New samples.

    • A new sample for India 2004 was added to the data series. The sample is an employment survey similar to the other India samples.

June 1, 2010

    New samples.

    • Twenty-eight new samples for Cuba, Mali, Nepal, Pakistan, Peru, Puerto Rico, Saint Lucia, Senegal, Switzerland, Tanzania, and Thailand were added to the data series.

    New variables.

    • The data release also added 55 new harmonized variables and approximately 2500 unharmonized variables specific to the individual samples.

    New features.

    • IPUMS-International added a discussion of sampling error that highlights situations where sample design can significantly affect standard errors. We continue to develop this material.

February 1, 2010

    New features.

    • IPUMS-International made available downloadable datasets containing fertility, mortality and migration events for seven censuses from developing countries. Because there can be multiple events per person or per household, these data do not fit within the data structure handled by the IPUMS extract system. Instead, these files can be downloaded and matched onto the extract data, giving researchers complete flexibility to devise their own measures.

January 1, 2010

    New features.

    • IPUMS-International also introduced a new web interface that integrates variable browsing with the data extract process. The new system also includes a variable search feature.

    Edited variables.

    • A problem with MARST affecting Brazil 2000 was corrected. There are three source variables that are not entirely consistent with one another. After review, we altered our interpretation of the data, which results in more consensual unions and separated persons and fewer married, divorced and widowed. The unharmonized source variables are unchanged, so users can access them to explore this issue further.
    • An error in INCEARN affecting Venezuela 1981 was corrected. Too many cases were receiving a value of "1".

May 1, 2009

    New samples.

    • Nineteen new samples for Armenia, Bolivia, France, Guinea, India, Italy, Jordan, Kyrgyz Republic, Mongolia, Romania, Slovenia, and South Africa were added to the data series. The Indian samples are large employment surveys that asked many questions common in censuses. The French, Romanian, and South African samples extend pre-existing series of samples for those countries.

    New variables.

    • IPUMS-International also added approximately 60 new harmonized variables and 1700 unharmonized variables specific to the individual samples.

    New features.

    • IPUMS-International introduced GIS boundary files. These enable users to map variables with country-level geography and variables relating to the first administrative level within in each country, such as place of residence and birthplace.

June 1, 2008

    New samples.

    • Thirty-two new samples for Austria, Canada, China, Colombia, Egypt, Ghana, Iraq, Malaysia, Mexico, Netherlands, Panama, United Kingdom, United States, and Venezuela were added to IPUMS-International.

    New variables.

    • IPUMS-International added approximately 100 new harmonized variables amd 2000 unharmonized variables specific to the individual samples.

    Expanded variables.

    • Location-of-mother and location-of-father data were developed for all samples. The constructed parental locator variables MOMLOC and POPLOC gives the record number within the household of each person's mother or father using information on age, relationship, marital status, child-bearing, and other data. The variables makes it easy to attach the characteristics of a person's parent to their own record (such as mother's age or father's occupation), or to summarize the characteristics of dependent children (such as number of own children in school). The basis for making the links is summarized in the variable PARRULE.

    New features.

    • Users can customize their extract size by selecting the number of households or persons they want from each dataset. The extract system draws a subset of households that match the desired case-count or sample fraction and generates syntax files that adjust the weight variables appropriately.
    • While browsing the documentation, users can save variables to include in their data extract later in their web session.
    • The extract system will "attach characteristics": it will use information from the record of the spouse, mother, father, or head to create new variables such as "mother's employment status." The feature uses the constructed family interrelationship "pointer" variables, MOMLOC, POPLOC, and SPLOC.

July 1, 2007

    Edited variables.

    • Corrected an error in the SPLOC affecting Rwanda 1991, South Africa 2001, and Uganda 1991. Second and higher order spouses in polygamous unions were not being linked to their husband.
    • Improved the RELATE codes in 1980 and 1990 Hungary for persons who were not part of the primary family. The samples only contain relationship-to-subfamily-head information, but it is possible to infer the relationships between subfamilies in most cases.

June 1, 2007

    New samples.

    • Seventeen new samples for Argentina, Hungary, Israel, Palestine, Portugal, and Rwanda were added to the data series.

    Expanded variables.

    • Location-of-spouse data were developed for all samples. The constructed spouse locator variable SPLOC gives the record number within the household of each person's spouse using information on age, relationship, marital status, and other data. The variable makes it easy to attach the characteristics of a person's spouse to their own record (such as spouse's age or occupation). The basis for making the link is summarized in the variable SPRULE.

December 1, 2006

    New samples.

    • Sixteen new samples for Belarus, Cambodia, Greece, Philippines, Romania, Spain, and Uganda were added to the data series.

    New features.

    • IPUMS-International added unharmonized variables as a new feature of the documentation system, giving users access to the full information of the original samples -- even those variables we have not harmonized cross-nationally. Also introduced content filtering, so only information for selected countries appears on the various documentation pages.

June 1, 2006

    New samples.

    • Nineteen new samples for Chile, Costa Rica, Ecuador, South Africa, and Venezuela were added to the data series.

    New variables.

    • Approximately 50 new variables were added to IPUMS-International.

    Infrastructure changes.

    • IPUMS-International introduced a dynamically generated variables page allowing users to customize their view of the contents of the data series.

    New features.

    • IPUMS-International also added a feature that compiles on a single web page, for any IPUMS variable, all relevant enumeration text from every census. This page can also be customized to include only the samples of interest to researchers.

December 1, 2005

    New features.

    • The expanded samples and improved data extraction system developed in March were moved to the regular IPUMS-International site. The beta test site was deactivated.

March 1, 2005

    New variables.

    • Thirty-three new household variables and 100 new person variables were added to the data series on the beta test site. The new release adds substantially to the household record, and nearly completes all remaining person variables for the 28 samples currently in the data series.

    New features.

    • IPUMS-International introduced a new data extraction system with improved features. The most significant improvement is the ability to revise and resubmit past data extracts. The system also allows the user, when performing case selection, the choice of including only the persons meeting the selection criteria, or including all persons within households in which any person meets the selection criteria.

September 1, 2004

    New samples.

    • New five percent samples for USA 1980-2000 replaced the previously disseminated one percent samples.

July 1, 2004

    Edited variables.

    • An error in OCCISCO for Kenya 1989 was corrected. Persons in the labor force were incorrectly coded to "Not Applicable."

June 1, 2004

    New samples.

    • Preliminary samples for Brazil 1960, 1970, 1980, 1991 and 2000 were added to IPUMS-International. Some constructed variables, such as the spouse and parental locators, are not yet included in the Brazil samples.

January 1, 2004

    Edited samples.

    • New versions of the Colombia samples were introduced that allow the identification of municipalities and municipality groupings with at least 20,000 population in 1993.

December 1, 2003

    Edited variables.

    • An error in RELATE for Mexico 1970 was corrected. The census asked for relationship to head of family, not head of household. In the previous version of the data, we erroneously interpreted these families/subfamilies in multi-family households as if they were separate households in multi-household dwellings. Only households with subfamilies were affected by the error. In the current data, subfamily members in multi-family households are coded "unknown" for relationship to household head, but a separate variable SUBFREL retains their relationship to their family head.

October 1, 2003

    Edited variables.

    • An error in URBAN for 1970 Mexico was corrected. The values for urban and rural had been reversed.

    Edited samples.

    • All the French samples in IPUMS-International were replaced with versions containing persons organized in households. The previous versions were individual-level samples that did not group co-resident persons.

July 1, 2003

    New variables.

    • IPUMS-International added numeruous variables on birthplace, migration, and disability, among others.

    New samples.

    • United States 2000 was added to IPUMS-International.

April 1, 2003

    New variables.

    • CHSURV, which reports the number of children born to a woman who were still living at the time of the census, was added to IPUMS-International.
    • Preliminary versions of the constructed household and family interrelationship variables, including MOMLOC, POPLOC, and SPLOC were added to IPUMS-International.

    Edited samples.

    • The Kenya 1999 sample was replaced with an improved version.

March 1, 2003

    New samples.

    • China 1982 was added to the IPUMS-International database.

August 1, 2002

    Edited variables.

    • A problem with PERWT for Vietnam 1989 was corrected. The previous weights were erroneous.