HRS 2002 Imputation Final Release (Version 1) June 3, 2005 The HRS 2002 Imputation Final Release (Version 1) is now available. Covering twenty-one sections of the core interviews, the HRS 2002 Imputation Final Release contains data for 18,167 respondents and 12,350 households. The data collection period for the 2002 interview was February 2002 through March 2003. These files have NOT yet been approved for general use with SSA derived restricted data. Any requests to do so must be submitted formally through the restricted data group. If you find any problems with the data, please report to us by email at our help desk address, hrsquestions@umich.edu, or through the Help Desk page on this site.