TABLE 3 
FEDERAL
RETURN DATA 
STATISTICAL
DISTRIBUTION OF AGI, PERSONAL EXEMPTIONS AND FEDERAL TAXES 
2004 

ALL 
SINGLE 
HEAD OF 
MARRIED 
MARRIED 



HOUSEHOLD 
JOINT 
SEPARATE 
ADJUSTED GROSS INCOME 





NUMBER OF NONMISSING
VALUES 
987,914 
393,320 
102,820 
476,714 
13,325 
THE MEAN 
$44,624 
$20,767 
$27,020 
$68,408 
$37,187 
THE SUM

$44,084,329,253 
$8,167,981,174 
$2,778,223,666 
$32,611,062,088 
$495,521,626 
THE STANDARD DEVIATION 
$179,374 
$72,817 
$42,402 
$238,554 
$373,177 
THE UPPER QUARTILE 
$56,550 
$26,875 
$33,408 
$79,311 
$38,365 
THE MEDIAN 
$29,174 
$13,727 
$21,589 
$52,582 
$23,190 
THE LOWER QUARTILE 
$12,875 
$5,806 
$13,326 
$31,204 
$11,235 
THE 90TH PERCENTILE 
$89,134 
$44,327 
$49,661 
$114,458 
$57,570 
THE 10TH PERCENTILE 
$4,753 
$2,283 
$7,512 
$17,197 
$4,274 












PERSONAL EXEMPTIONS 





NUMBER OF NONMISSING
VALUES 
987,914 
393,320 
102,820 
476,714 
13,325 
THE MEAN 
2.31 
0.82 
2.67 
3.49 
1.43 
THE SUM 
2,281,001 
323,193 
274,811 
1,662,294 
18,989 
THE STANDARD DEVIATION 
2 
1 
1 
2 
1 
THE UPPER QUARTILE 
3 
1 
3 
4 
2 
THE MEDIAN 
2 
1 
2 
3 
1 
THE LOWER QUARTILE 
1 
1 
2 
2 
1 
THE 90TH PERCENTILE 
5 
1 
4 
6 
3 
THE 10TH PERCENTILE 
1 
0 
2 
2 
1 












FEDERAL INCOME TAX 





NUMBER OF NONMISSING
VALUES 
987,914 
393,320 
102,820 
476,714 
13,325 
THE MEAN 
$4,296 
$2,002 
$1,389 
$6,818 
$4,567 
THE SUM 
$4,243,678,214 
$787,261,403 
$142,797,470 
$3,250,133,588 
$60,850,759 
THE STANDARD DEVIATION 
$49,579 
$11,191 
$10,407 
$69,633 
$61,524 
THE UPPER QUARTILE 
$3,615 
$2,129 
$1,017 
$5,909 
$3,111 
THE MEDIAN 
$743 
$473 
$0 
$1,898 
$1,086 
THE LOWER QUARTILE 
$0 
$0 
$0 
$0 
$0 
THE 90TH PERCENTILE 
$8,356 
$4,656 
$3,511 
$12,803 
$6,606 
THE 10TH PERCENTILE 
$0 
$0 
$0 
$0 
$0 





