Census – “Using the two most recent waves (11 and 12) from the 2008 Survey of Income and Program Participation panel, this table package presents income and earnings estimates at the individual, family and household level for the first quarter (January, February and March) of 2012. Quarterly estimates by selected demographic characteristics, such as gender, race/ethnicity, age, marital status and highest level of educational attainment, are also provided. In addition, this table package presents monthly income and earnings estimates for individuals, families and households. Internet addresses:

Main page: <http://www.census.gov/sipp/tables/quarterly-est.html>
Income page: <http://www.census.gov/sipp/tables/quarterly-est/income/income-12.html>
Earnings page: <http://www.census.gov/sipp/tables/quarterly-est/earnings/earnings-12.html>”