effectivetaxrateontop5pct-and-rateneededtoincreasetaxrevenuesby10pctofgdp-us-1960to2016 Published May 19, 2019 at 1534 × 958 in effectivetaxrateontop5pct-and-rateneededtoincreasetaxrevenuesby10pctofgdp-us-1960to2016