SERIAL is a 10-digit numeric variable.

The last 3 digits of SERIAL indicate household number within dwelling for selected samples noted in the variable description. In all other samples, the last 3 digits are always zeroes.

Description

SERIAL is an identifying number unique to each household in a given sample. All person records are assigned the same serial number as the household record that they follow. (Person records also have their own unique identifiers -- see PERNUM.) The combination of SAMPLE and SERIAL provides a unique identifier for every household in the IPUMS-International database; SAMPLE, SERIAL and PERNUM uniquely identify every person in the database.

SERIAL can be used to identify dwellings in some samples. In these samples, the first 7 digits of SERIAL provide the dwelling number common to all households that were sampled from the same structure. The last three digits give the sequence of the household within the dwelling. The following is a list of samples in which dwellings can be inferred:

In all other samples, the last 3 digits are always zeroes.

SERIAL was constructed for IPUMS-International, and has no relation to the serial number in the original datasets.

Comparability — Index

Comparability — General

This variable is comparable across all samples.

Universe

Availability

• Argentina: 1970, 1980, 1991, 2001, 2010
• Armenia: 2001, 2011
• Austria: 1971, 1981, 1991, 2001, 2011
• Bangladesh: 1991, 2001, 2011
• Belarus: 1999, 2009
• Benin: 1979, 1992, 2002, 2013
• Bolivia: 1976, 1992, 2001, 2012
• Botswana: 1981, 1991, 2001, 2011
• Brazil: 1960, 1970, 1980, 1991, 2000, 2010
• Burkina Faso: 1985, 1996, 2006
• Cambodia: 1998, 2004, 2008, 2013, 2019
• Cameroon: 1976, 1987, 2005
• Canada: 1852, 1871, 1881, 1891, 1901, 1911, 1971, 1981, 1991, 2001, 2011
• Chile: 1960, 1970, 1982, 1992, 2002, 2017
• China: 1982, 1990, 2000
• Colombia: 1964, 1973, 1985, 1993, 2005
• Costa Rica: 1963, 1973, 1984, 2000, 2011
• Cuba: 2002, 2012
• Côte d'Ivoire: 1988, 1998
• Denmark: 1787, 1801, 1845, 1880, 1885
• Dominican Republic: 1960, 1970, 1981, 2002, 2010
• Ecuador: 1962, 1974, 1982, 1990, 2001, 2010
• Egypt: 1848, 1868, 1986, 1996, 2006
• El Salvador: 1992, 2007
• Ethiopia: 1984, 1994, 2007
• Fiji: 1966, 1976, 1986, 1996, 2007, 2014
• Finland: 2010
• France: 1962, 1968, 1975, 1982, 1990, 1999, 2006, 2011
• Germany: 1819, 1970, 1971, 1981, 1987
• Ghana: 1984, 2000, 2010
• Greece: 1971, 1981, 1991, 2001, 2011
• Guatemala: 1964, 1973, 1981, 1994, 2002
• Guinea: 1983, 1996, 2014
• Haiti: 1971, 1982, 2003
• Honduras: 1961, 1974, 1988, 2001
• Hungary: 1970, 1980, 1990, 2001, 2011
• Iceland: 1703, 1729, 1801, 1901, 1910
• India: 1983, 1987, 1993, 1999, 2004, 2009
• Indonesia: 1971, 1976, 1980, 1985, 1990, 1995, 2000, 2005, 2010
• Iran: 2006, 2011
• Iraq: 1997
• Ireland: 1901, 1911, 1971, 1979, 1981, 1986, 1991, 1996, 2002, 2006, 2011, 2016
• Israel: 1972, 1983, 1995, 2008
• Italy: 2001, 2011, 2011Q1, 2012Q1, 2013Q1, 2014Q1, 2015Q1, 2016Q1, 2017Q1, 2018Q1, 2019Q1, 2020Q1
• Jamaica: 1982, 1991, 2001
• Jordan: 2004
• Kenya: 1969, 1979, 1989, 1999, 2009
• Kyrgyzstan: 1999, 2009
• Laos: 1995, 2005, 2015
• Lesotho: 1996, 2006
• Liberia: 1974, 2008
• Malawi: 1987, 1998, 2008
• Malaysia: 1970, 1980, 1991, 2000
• Mali: 1987, 1998, 2009
• Mauritius: 1990, 2000, 2011
• Mexico: 1960, 1970, 1990, 1995, 2000, 2005, 2005Q1, 2005Q2, 2005Q3, 2005Q4, 2006Q1, 2006Q2, 2006Q3, 2006Q4, 2007Q1, 2007Q2, 2007Q3, 2007Q4, 2008Q1, 2008Q2, 2008Q3, 2008Q4, 2009Q1, 2009Q2, 2009Q3, 2009Q4, 2010, 2010Q1, 2010Q2, 2010Q3, 2010Q4, 2011Q1, 2011Q2, 2011Q3, 2011Q4, 2012Q1, 2012Q2, 2012Q3, 2012Q4, 2013Q1, 2013Q2, 2013Q3, 2013Q4, 2014Q1, 2014Q2, 2014Q3, 2014Q4, 2015, 2015Q1, 2015Q2, 2015Q3, 2015Q4, 2016Q1, 2016Q2, 2016Q3, 2016Q4, 2017Q1, 2017Q2, 2017Q3, 2017Q4, 2018Q1, 2018Q2, 2018Q3, 2018Q4, 2019Q1, 2019Q2, 2019Q3, 2019Q4, 2020, 2020Q1, 2020Q3
• Mongolia: 1989, 2000
• Morocco: 1982, 1994, 2004, 2014
• Mozambique: 1997, 2007
• Myanmar: 2014
• Nepal: 2001, 2011
• Netherlands: 1960, 1971, 2001, 2011
• Nicaragua: 1971, 1995, 2005
• Nigeria: 2006, 2007, 2008, 2009, 2010
• Norway: 1801, 1865, 1875, 1900, 1910
• Pakistan: 1973, 1981, 1998
• Palestine: 1997, 2007, 2017
• Panama: 1960, 1970, 1980, 1990, 2000, 2010
• Papua New Guinea: 1980, 1990, 2000
• Paraguay: 1962, 1972, 1982, 1992, 2002
• Peru: 1993, 2007, 2017
• Philippines: 1990, 1995, 2000, 2010
• Poland: 1978, 1988, 2002, 2011
• Portugal: 1981, 1991, 2001, 2011
• Puerto Rico: 1970, 1980, 1990, 2000, 2005, 2010, 2015, 2020
• Romania: 1977, 1992, 2002, 2011
• Russia: 2002, 2010
• Rwanda: 1991, 2002, 2012
• Saint Lucia: 1980, 1991
• Senegal: 1988, 2002, 2013
• Sierra Leone: 2004, 2015
• Slovakia: 1991, 2001, 2011
• Slovenia: 2002
• South Africa: 1996, 2001, 2007, 2011, 2016
• South Sudan: 2008
• Spain: 1981, 1991, 2001, 2005Q1, 2005Q2, 2005Q3, 2005Q4, 2006Q1, 2006Q2, 2006Q3, 2006Q4, 2007Q1, 2007Q2, 2007Q3, 2007Q4, 2008Q1, 2008Q2, 2008Q3, 2008Q4, 2009Q1, 2009Q2, 2009Q3, 2009Q4, 2010Q1, 2010Q2, 2010Q3, 2010Q4, 2011, 2011Q1, 2011Q2, 2011Q3, 2011Q4, 2012Q1, 2012Q2, 2012Q3, 2012Q4, 2013Q1, 2013Q2, 2013Q3, 2013Q4, 2014Q1, 2014Q2, 2014Q3, 2014Q4, 2015Q1, 2015Q2, 2015Q3, 2015Q4, 2016Q1, 2016Q2, 2016Q3, 2016Q4, 2017Q1, 2017Q2, 2017Q3, 2017Q4, 2018Q1, 2018Q2, 2018Q3, 2018Q4, 2019Q1, 2019Q2, 2019Q3, 2019Q4, 2020Q1, 2020Q2, 2020Q3, 2020Q4
• Sudan: 2008
• Suriname: 2004, 2012
• Sweden: 1880, 1890, 1900, 1910
• Switzerland: 1970, 1980, 1990, 2000, 2011
• Tanzania: 1988, 2002, 2012
• Thailand: 1970, 1980, 1990, 2000
• Togo: 1960, 1970, 2010
• Trinidad and Tobago: 1970, 1980, 1990, 2000, 2011
• Turkey: 1985, 1990, 2000
• Uganda: 1991, 2002, 2014
• Ukraine: 2001
• United Kingdom: 1851a, 1851b, 1851c, 1861a, 1861b, 1871b, 1881a, 1881b, 1891a, 1891b, 1901a, 1901b, 1911, 1961, 1971, 1991, 2001
• United States: 1850a, 1850b, 1860, 1870, 1880a, 1880b, 1900, 1910, 1960, 1970, 1980, 1990, 2000, 2005, 2010, 2015, 2020
• Uruguay: 1963, 1975, 1985, 1996, 2006, 2011
• Venezuela: 1971, 1981, 1990, 2001
• Vietnam: 1989, 1999, 2009, 2019
• Zambia: 1990, 2000, 2010
• Zimbabwe: 2012