The document contains graphs showing income tax return data from 2008. The largest number of tax returns came from those earning between $30,000-$50,000. Higher incomes between $100,000-$200,000 accounted for the largest share of total tax bills. The number of tax forms from the top 50% of wage earners has steadily increased from 1986 to 2008, which would have increased tax revenues for the government.