eventually to 28% in 1988. It slowly increased to 39.6% in 2000, then was reduced to 35% for the period 2003 through 2012. Corporate tax rates were lowered from 48% to 46% in 1981 (PL 97-34), then to 34% in 1986 (PL 99-514), and increased to 35% in 1993, subsequently lowered to 21% in 2018. Timothy Noah, the senior editor of the New Republic, argues that while Ronald Reagan made massive reductions in the nominal marginal income tax rates with his Tax Reform Act of 1986, this reform did not make a similarly massive reduction in the effective tax rate on the higher marginal incomes. Noah writes in his ten-part series entitled "The Great Divergence," that in 1979, the effective tax rate on the top 0.01 percent of taxpayers was 42.9 percent, according to the Congressional Budget Office, but that by Reagan's last year in office it was 32.2%. This effective rate on high incomes held steadily until the first few years of the Clinton presidency when it increased to a peak high of 41%. However, it fell back down to the low 30s by his second term in the White House. This percentage reduction in the effective marginal income tax rate for the wealthiest Americans, 9%, is not a very large decrease in their tax burden, according to Noah, especially in comparison to the 20% drop in nominal rates from 1980 to 1981 and the 15% drop in nominal rates from 1986 to 1987. In addition to this small reduction in the income taxes of the wealthiest taxpayers in America, Noah discovered that the effective income tax burden for the bottom 20% of wage earners was 8% in 1979 and dropped to 6.4% under the Clinton Administration. This effective rate further dropped under the George W. Bush Administration. Under Bush, the rate decreased from 6.4% to 4.3%. These figures also correspond to an analysis of effective tax rates from 1979–2005 by the Congressional Budget Office. Development of the modern income tax Congress re-adopted the income tax in 1913, levying a 1% tax on net personal incomes above $3,000, with a 6% surtax on incomes above $500,000. By 1918, the top rate of the income tax was increased to 77% (on income over $1,000,000) to finance World War I. The top marginal tax rate was reduced to 58% in 1922, to 25% in 1925, and finally to 24% in 1929.