Revisions Made to IPUMS-CPS

Below is a list of significant changes made to the IPUMS-CPS data, documentation, and extract system.

February 8, 2016.

December 15th, 2015.

December 3rd, 2015.

September 29th, 2015.

September 25th, 2015.

August 6th, 2015.

June 8, 2015.

April 13, 2015.

November 25th, 2014.

Noncash benefits values and after tax values added for ASEC 2014. Healh insurance unit data added for ASEC 2014.

September 25th, 2014.

New ASEC data.

September 8th, 2014.

June 19th, 2014.

Displaced Worker and Job Tenure Supplement variables are now availabe for select January and February samples.

April 16th, 2014.

Child Support Supplement variables are now availabe for select March ASEC samples. Select SPM variables have been updated. Supplement weights based on Census 2010 population controls are now available for CPS ASEC 2010 and 2011.

February 3rd, 2014.

New samples and corrected variables.

December 2nd, 2013.

Computer and Internet Use varaibles available for selected non-March samples from 1997 to 2010. 2013 March ASEC Supplement tax variables, Supplemental Poverty Measures, and SHADAC data are now available on IPUMS-CPS.

September 25th, 2013.

Posted new March 2013 data. A new variable for Asian descent is available. Official poverty rate variables are now available on IPUMS-CPS. Added variables and corrected variables for selected samples.

September 4, 2013.

Food Security supplement variables available for selected non-March samples from 1995 to 2010. Tobacco Use supplement variables available for selected non-March samples from 1995 to 2007. Volunteer supplement variables are now available for September samples from 2002 to 2010.

June 12, 2013.

Voter supplement variables available for biennial November samples 1996 to 2006. New samples added for education supplements. Fertility and veterans supplements available 1995-2010.

March 25, 2013.

Return to home equity data available for 1992-2003 March samples.

March 12, 2013.

2012 ASEC tax variables are now available on IPUMS-CPS, corrected variables.

February 5, 2013.

New samples and variables are now available on IPUMS-CPS.

December 11, 2012.

Corrected variables, added Supplemental Poverty Measure variables to March 2012 supplement.

October 30, 2012.

Corrected tax and income variables, changed income variables.

October 23, 2012.

Corrected variables, added Supplemental Poverty Measure and SHADAC data to March samples, added variables to basic monthly samples

September 17, 2012.

Posted new March 2012 data. There are new categories available for year of immigration (YRIMMIG).

August 15, 2012.

Corrected tax variables and added new data to March samples

June 12, 2012.

Posted 1994-1997 non-March files and made improvements to several other files.

February 29, 2012.

Posted improvements to 2010 and 2011 CPS ASEC files, and 1998-2008 non-March files.

September 22, 2011.

Posted new 2011 CPS ASEC data and improvements to other files.

May 12, 2011.

Posted new versions of all previously available March data files (1962-2010) and basic monthly data for January 2000 through October 2008.

Oct. 6, 2010.

Posted new versions of 1988 and 1996-onward samples.

Sept. 29, 2010.

Posted new 2010 CPS ASEC data. There are several differences between this year and the 2009 ASEC file:

Updated data are also available for CMBEG (an alternative measure of poverty) in the 2009 CPS; most respondents were erroneously classified as having family incomes of more than five times the federal poverty level. Users who downloaded this variable previously should revise their extract.

Finally, our extract system has been improved for enhanced performance and a more intuitively understandable interface. Click here for a summary of the changes, or see our instructions page for more information.

June 25, 2010. Posted new versions of all IPUMS-CPS samples.

March 2, 2010. Posted new versions of all IPUMS-CPS samples.

September 30, 2009

Added replicate weights, recently released by the Census Bureau, to the 2005-2009 CPS samples. Replicate weights can be used to estimate standard errors of sample statistics directly from the data. For more information, please see the REPWTP variable description. Users should be aware that selecting replicate weights will add 160 additional variables to extracts.

September 11, 2009

All other variables from the 2008 CPS remain the same, with the exception of non-cash benefits and tax variables as well as alternative poverty measures. These will be released in the IPUMS-CPS shortly after the Census Bureau releases them, most likely in early 2010.

June 19, 2009.

Posted new data for all years with thirteen new poverty variables:

The new versions also include three corrections to the FAMUNIT coding. In each of the 1962-1994 samples, FAMUNIT has generally changed for less than 0.5 percent of the cases. In each of the 1995-2008 samples, FAMUNIT has changed for 1-2 percent of the cases. Because FAMSIZE and NFAMS incorporate information from FAMUNIT, all persons in households where someone has a new FAMUNIT code may have different values for FAMSIZE and NFAMS, even if their own FAMUNIT code has not changed. In practice, though, very few persons have different FAMSIZE and NFAMS values in the 1962-1994 data. Details follow:

Finally, there are minor changes to three other variables:

May 19, 2009.

Posted new data for 2008. In the initial 2008 CPS release, several variables were withheld until the release of official reports on alternative income and poverty measures. These variables have since been released by the Census Bureau and are included in the current IPUMS-CPS release. Newly-released household variables are STAMPVAL, HOUSRET, and PROPTAX. Person variables are ADJGINC, CAPGAIN, CAPLOSS, DEPSTAT, EITCRED, EMCONTRB, FEDRETIR, FEDTAX, FEDTAXAC, FICA, FILESTAT, MARGTAX, PMVCAID, PMVCARE, STATETAX, STATAXAC, and TAXINC.

February 23, 2009.

Posted new versions for 1962-1967. The only variables affected were OCC, IND, OCCLY, and INDLY. Persons not in the universe previously had values of either 0, 98, 99, or 999. All persons not in the universe now have a value of 99 in all of these variables.

October 9, 2008.

Posted new versions for 1963-2008 to include the original CPS variable FTOTVAL and make improvements to the OCCLY variable for 2003-2008.

September 16, 2008.

Posted new data for 2007 and 2008:

November 12, 2007.

Released a new data extract system with the Attach Variables feature. This allows researchers to create variables specifying the characteristics of respondents' spouses, mothers, fathers, and household heads. New online help for the Case Selection and Attach Variables features is also available via hyperlinks from the data extract system. In addition, we have improved the look and functionality of our variable descriptions and codes pages.

October 24, 2007.

Posted new data for 2005, 2006, and 2007:

May 1, 2007.

Posted new version of the 1994 sample: a correction was made to the MBPL variable.

February 2, 2007.

Posted new versions of the 2005 and 2006 samples: a correction was made to the CUTOFF variable.

December 1, 2006.

Posted new data for 1963, 1966, and 1967. All weighting variables in these samples were adjusted by a constant. The samples now produce accurate population estimates. More information is available on the sample notes page.

October 19, 2006.

Posted new data for 2004, 2005, and 2006:

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