Table 1

Summary Statistics—SIPP-SSA Matched Sample

 Characteristics of the Head of Household Annual Household Income ($2006)
 AgeEducationSexYear 1Year 2
Yeara Less than High SchoolHigh SchoolGreater than High SchoolMaleMeanStandard DeviationMeanStandard Deviation
198538.216.238.145.674.054,48031,30057,92032,890
1986
1987
1988
1989
1990
199138.712.835.651.668.859,59035,03060,60036,290
199238.711.736.352.070.858,98035,65061,03037,370
199339.111.335.653.169.259,25036,03060,62036,950
199439.411.834.453.868.459,52037,05061,36037,740
1995
1996
1997
199840.310.228.461.456.059,90037,07063,58039,380
1999
2000
2001
200240.89.027.064.052.461,25039,28062,40039,960
2003
2004
200541.25.223.671.244.163,31041,02064,35041,860
  • Source: Various panels of the Survey of Income and Program Participation matched to the administrative earnings data from the Social Security Administration.

  • Note: The sample consists of households whose heads were between the ages of 25 and 55, inclusive. Income is inflated to 2006 dollars using the CPI-U-RS. The household head is the person (or one of the persons) in whose name the home is owned or rented. If the house is owned jointly by a married couple, either the husband or the wife may be listed first, thereby becoming the householder. The top and bottom 2 percent of households in the income distribution in either Year 1 or Year 2 are excluded from the sample.

  • a Year is the second year of a two year period.