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Component ID: #ti136540269

Prior to April 7, 2011, the 2007-2009 ACS 3-year PUMS had errors in the variables ADJINC and ADJHSG on the housing unit files. Corrected housing unit files were released on April 7, 2011.

Previous note about this error was posted March 17, 2011 (see below).

Component ID: #ti1928784674

Errors in ADJINC and ADJHSG in the 2007-2009 ACS 3-year Public Use Microdata Sample (PUMS) Files

The 2007-2009 ACS 3-year PUMS has errors in the variables ADJINC and ADJHSG on the housing unit files. These variables are used to adjust dollar values into 2009 dollars. Each adjustment variable is a constant within each data collection year.

The error only affects cases on the housing unit record that were collected in 2007 and 2008. Cases collected in 2008 were assigned the 2007 value, and cases collected in 2007 were assigned the 2008 value. Cases collected in 2009 are not affected, and the person-level files were not affected.

To correct this error, use the SERIALNO variable to identify the data collection year, and replace the data with the values in the table below. Each case's data collection year is indicated in the first 4 digits of SERIALNO. The table below shows the correct values for cases in each data collection year.

Year ADJINC ADJHSG
2007 1051849 1034483
2008 1014524 0996205

We will release the corrected 2007-2009 ACS 3-year PUMS files in April 2011.

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