1850_202_4xCO2 1850_202 0 1.99 0.78 1 4.65 44.88 2 1.48 -0.14 3 14.44 52.27 4 1.28 -0.13 5 12.23 47.94 6 1.28 -0.25 7 17.50 47.02 8 1.71 -0.15 9 15.93 50.08 10 1.61 -0.05 11 11.44 51.12 12 9.26 8.59