1931 1 5.0 0.6 11 78.4 43.4 1931 2 6.7 0.7 7 48.9 63.6 1931 3 6.2 -1.5 19 37.6 145.4 1931 4 10.4 3.1 3 44.6 110.1 1931 5 13.2 6.1 1 63.7 167.4 1931 6 15.4 8.0 0 87.8 150.3 1931 7 17.3 10.6 0 121.4 111.2 1931 8 15.6 9.1 0 57.2 127.5 1931 9 15.0 8.4 0 38.1 122.3 1931 10 12.1 5.5 2 59.4 95.8 1931 11 10.3 3.9 3 43.7 61.5 1931 12 8.9 3.2 7 33.6 36.5