What does this article mean?

http://www.usatoday.com/money/perfi/taxes/2010-05-10-taxes_N.htm

Because if it means that anyone in the US pays even close to 10% of their income in taxes (all kinds of taxes combined), I call bullshit.

In NY state, the sales tax alone is 8.5% on practically every dollar you spend. Did they survey people who don't spend any money at all? How much does one have to earn to pay under 10% income tax? $10000 per year?

If they had said that about 35-45% of personal income went to taxes I'd believe it, but I can't believe anything under 10%.