Continuous values of PANEL Continuous values of PNUM Continuous values of ENTRY Continuous values of SUID All Ret. Wkrs., excl. Dually Entitled FM Aged Dually Entitled Wife Aged Wife Aged Dually Entitled Widow Mtch not in cur pay or no MBR or no Mtc Not in Sample in January 1990 Disabled Workers Aged Widow All Other Continuous values of SSAYOD