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Household Income Limits by Percentile: 1967-1998 /a


                Variance of    Mean logarithmic
                 the log of	        deviation                   Atkinson
Year      Gini       income   	  of Income     Theil      e=0.25   e=0.50  e=0.75

1998      0.456      0.973     		0.488     0.389       0.093    0.181    0.271
1997      0.459      0.966     		0.484     0.396       0.094    0.183    0.272
1996      0.455      0.954     		0.464     0.389       0.093    0.179    0.266
1995      0.450      0.945     		0.452     0.378       0.090    0.175    0.261
1994      0.456      0.976     		0.471     0.387       0.092    0.180    0.268
1993      0.454      0.942     		0.467     0.385       0.092    0.178    0.266

1992      0.434      0.925     		0.416     0.323       0.080    0.160    0.242
1991      0.428      0.878     		0.411     0.313       0.078    0.156    0.237
1990      0.428      0.888     		0.402     0.317       0.078    0.156    0.236
1989      0.431      0.887     		0.406     0.324       0.080    0.158    0.239
1988      0.427      0.899     		0.401     0.314       0.078    0.155    0.236
1987      0.426      0.936     		0.414     0.311       0.077    0.155    0.238
1986      0.425      0.888     		0.416     0.310       0.077    0.155    0.237
1985      0.419      0.863     		0.403     0.300       0.075    0.151    0.231
1984      0.415      0.859     		0.391     0.290       0.073    0.147    0.225
1983      0.414      0.865     		0.397     0.288       0.072    0.147    0.226
1982      0.412      0.864     		0.401     0.287       0.072    0.146    0.226
1981      0.406      0.826     		0.387     0.277       0.070    0.141    0.220
1980      0.403      0.792     		0.375     0.274       0.069    0.140    0.216
1979      0.404      0.816     		0.369     0.279       0.070    0.141    0.216
1978      0.402      0.784     		0.363     0.275       0.069    0.139    0.213
1977      0.402      0.768     		0.364     0.276       0.069    0.139    0.213
1976      0.398      0.756     		0.361     0.271       0.068    0.137    0.211
1975      0.397      0.746     		0.361     0.270       0.067    0.136    0.210
1974      0.395      0.740     		0.352     0.267       0.067    0.134    0.207
1973      0.397      0.776     		0.355     0.270       0.068    0.136    0.210
1972      0.401      0.790     		0.370     0.279       0.070    0.140    0.216
1971      0.396      0.782     		0.370     0.273       0.068    0.138    0.214
1970      0.394      0.805     		0.370     0.271       0.068    0.138    0.214
1969      0.391      0.774     		0.357     0.268       0.067    0.135    0.209
1968      0.388      0.779     		0.356     0.273       0.067    0.135    0.208
1967      0.399      0.813     		0.380     0.287       0.071    0.143    0.220


/a See technical appendix for explanations of the various summary measures
and Atkinson inequality aversion parameter (e).

Note: Change in data collection methodology suggests pre-1993 and post-1992 
	estimates are not strictly comparable (A New Mode of Data Collection).

Source: U.S. Census Bureau Current Population Survey, March 1968-1999

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Source: U.S. Census Bureau | Income |  Last Revised: September 16, 2010