I see the mistake I was making.
Lol. It sort of made me feel better as I've been comparing my income to household income.
There is still a minor gap between our figures and then one issue with the data..
http://en.wikipedia.org/wiki/P...
$27,500 to $29,999 52.16 Median income.appears about $29000.
The 80% level
$57,500 to $59,999 80.90 agrees with your figures
$100,000 or more 93.39 The top 6.4% make over 100k
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Okay the problem.
This data which agrees with your figures includes "Of those individuals with income who were older than 15 years of age,"
So it has about 8 years worth of millions of young people who really not representative of people working for a living but rather working for a little extra spending money. It also includes millions of retired seniors with any income besides social security. Like the retired guy who works at my kroger two days a week.
If you look at actual prime working year people, you have two major groups
Overall median wage: 39,509 This is $10,000 higher than the figure above.
College Grad median wage: $56,027.
So it seems reasonable that among the "real" working population the 80% level is closer to $70,000.