Codes and Frequencies
Most IPUMS data transformations are performed using variable harmonization tables that specify how each value in the source data is recoded. Some variables also require programming logic in addition to the harmonization table. The harmonization documents for this variable are:
GEO1_SN identifies the household's region within Senegal in all sample years. Regions are the first level administrative units of the country. GEO1_SN is spatially harmonized to account for political boundary changes across census years. Some detail is lost in harmonization; see the comparability discussion. A GIS map (in shapefile format), corresponding to GEO1_SN can be downloaded from the GIS Boundary files page in the IPUMS International web site.
The full set of geography variables for Senegal can be found in the IPUMS International Geography variables list. For cross-national geographic analysis on the first and second major administrative level refer to GEOLEV1, and GEOLEV2. More information on IPUMS-International geography can be found here.
Comparability — General
Where boundaries changed over time, units were harmonized to create units with boundaries that remain stable over time.
- In 2002 Matam was formed from parts of Saint Louis and Louga.
- In 2008 Kaffrine region split from Kaolack
- Also, there was a change in boundary between Fatick and Kaolack between the 2002 and the 2013 censuses
- In 2008 Kédougou region split from Tambacounda
- In 2008 Sédhiou region split from Kolda
- All households
- Senegal: 1988, 2002, 2013