WHY would they want to know? When they don't want us to know something they eliminated, distort or spin it.
quote.......
As advocates for family well-being, we are alarmed that the President's FY2007 budget calls for the elimination of the Census Bureau's Survey of Income and Program Participation (SIPP). Elimination of the SIPP would make it more difficult for researchers to assess the economic and social situation of the country's families and the impact of state and national policies. The lack of accurate information will inevitably have negative consequences for low-income families and children.
Many experts believe that the SIPP is the nation's best source of data about poverty and income. For example, the National Academy of Sciences states, "SIPP should become the nation's primary source of income statistics...
can never be designed to provide the same extent of detail or achieve the same quality of reporting as in SIPP."
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http://www.ceprdata.org/savesipp/organization.html