3. Complete the table below by computing the average tax rates, given the net tax revenue data in column 2, and 4. And determine which column has the progressive, proportional, or regressive tax system. (1) (2) {3) {4) {5) (6) real GDP net tax revenue average tax rate net tax revenue average tax rate government spending $1000 $100 $100 $120 1100 120 108 120 1200 145 115 120 1300 175 120 120 1400 210 123 120