data list list / YEAR IMPORT DOPROD STOCK CONSUM. begin data. 49 15.9 149.3 4.2 108.1 50 16.4 161.2 4.1 114.8 51 19 171.5 3.1 123.2 52 19.1 175.5 3.1 126.9 53 18.8 180.8 1.1 132.1 54 20.4 190.7 2.2 137.7 55 22.7 202.1 2.1 146 56 26.5 212.4 5.6 154.1 57 28.1 226.1 5 162.3 58 27.6 231.9 5.1 164.3 59 26.3 239 0.7 167.6 60 31.1 258 5.6 176.8 61 33.3 269.8 3.9 186.6 62 37 288.4 3.1 199.7 63 43.3 304.5 4.6 213.9 64 49 323.4 7 223.8 65 50.3 336.8 1.2 232 66 56.6 353.9 4.5 242.9 end data.