1920 1 . 1920 2 . 1920 3 . 1920 4 . 1920 5 . 1920 6 139.500 1920 7 139.200 1920 8 148.500 1920 9 143.900 1920 10 158.400 1920 11 147.000 1920 12 129.200 1921 1 97.2000 1921 2 64.0000 1921 3 72.1000 1921 4 55.9000 1921 5 49.8000 1921 6 44.4000 1921 7 27.9000 1921 8 33.9000 1921 9 32.9000 1921 10 43.1000 1921 11 41.7000 1921 12 41.9000 1922 1 . 1922 2 . 1922 3 . 1922 4 . 1922 5 . 1922 6 . 1922 7 58.2000 1922 8 62.0000 1922 9 77.2000 1922 10 83.9000 1922 11 86.9000 1922 12 85.7000 1923 1 93.8000 1923 2 94.8000 1923 3 94.8000 1923 4 102.300 1923 5 103.800 1923 6 106.100 1923 7 108.200 1923 8 100.700 1923 9 98.1000 1923 10 101.800 1923 11 94.5000 1923 12 100.600 1924 1 102.200 1924 2 105.800 1924 3 105.500 1924 4 98.8000 1924 5 81.7000 1924 6 66.9000 1924 7 60.6000 1924 8 67.5000 1924 9 75.9000 1924 10 83.4000 1924 11 83.8000 1924 12 92.7000 1925 1 98.9000 1925 2 98.5000 1925 3 99.5000 1925 4 94.7000 1925 5 89.1000 1925 6 87.3000 1925 7 85.4000 1925 8 85.6000 1925 9 91.4000 1925 10 92.5000 1925 11 97.0000 1925 12 101.000 1926 1 97.2000 1926 2 101.700 1926 3 102.600 1926 4 99.7000 1926 5 100.000 1926 6 95.8000 1926 7 94.7000 1926 8 98.1000 1926 9 103.700 1926 10 103.000 1926 11 102.900 1926 12 95.7000 1927 1 95.2000 1927 2 100.600 1927 3 102.100 1927 4 97.0000 1927 5 96.1000 1927 6 88.9000 1927 7 84.4000 1927 8 89.4000 1927 9 89.0000 1927 10 85.5000 1927 11 86.3000 1927 12 84.3000 1928 1 91.6000 1928 2 91.2000 1928 3 92.9000 1928 4 94.8000 1928 5 95.5000 1928 6 91.8000 1928 7 89.2000 1928 8 94.6000 1928 9 98.7000 1928 10 101.300 1928 11 104.000 1928 12 96.2000 1929 1 102.600 1929 2 103.700 1929 3 106.000 1929 4 106.600 1929 5 107.400 1929 6 108.100 1929 7 104.800 1929 8 106.100 1929 9 107.300 1929 10 108.800 1929 11 96.6000 1929 12 85.8000 1930 1 99.4000 1930 2 104.200 1930 3 98.8000 1930 4 99.5000 1930 5 94.3000 1930 6 90.3000 1930 7 77.7000 1930 8 78.4000 1930 9 75.9000 1930 10 75.6000 1930 11 68.2000 1930 12 60.2000 1931 1 66.1000 1931 2 67.3000 1931 3 64.2000 1931 4 64.1000 1931 5 58.5000 1931 6 52.8000 1931 7 54.5000 1931 8 47.7000 1931 9 45.1000 1931 10 39.6000 1931 11 41.8000 1931 12 38.5000 1932 1 39.1000 1932 2 39.5000 1932 3 37.7000 1932 4 32.9000 1932 5 28.6000 1932 6 24.5000 1932 7 21.2000 1932 8 20.2000 1932 9 23.1000 1932 10 24.3000 1932 11 24.9000 1932 12 20.5000 1933 1 22.0000 1933 2 22.8000 1933 3 19.5000 1933 4 23.3000 1933 5 28.7000 1933 6 33.9000 1933 7 47.3000 1933 8 52.7000 1933 9 49.6000 1933 10 50.9000 1933 11 41.6000 1933 12 44.9000 1934 1 38.3000 1934 2 43.5000 1934 3 47.7000 1934 4 54.9000 1934 5 62.4000 1934 6 61.3000 1934 7 38.4000 1934 8 37.7000 1934 9 32.4000 1934 10 36.6000 1934 11 38.4000 1934 12 40.9000 1935 1 53.8000 1935 2 59.2000 1935 3 57.2000 1935 4 57.8000 1935 5 56.5000 1935 6 51.4000 1935 7 51.3000 1935 8 58.8000 1935 9 57.9000 1935 10 64.0000 1935 11 63.0000 1935 12 63.4000 1936 1 66.9000 1936 2 66.1000 1936 3 68.0000 1936 4 79.0000 1936 5 80.2000 1936 6 83.0000 1936 7 82.5000 1936 8 84.5000 1936 9 86.2000 1936 10 91.2000 1936 11 91.1000 1936 12 98.6000 1937 1 97.2000 1937 2 103.900 1937 3 117.400 1937 4 125.300 1937 5 119.200 1937 6 113.700 1937 7 115.400 1937 8 118.100 1937 9 112.100 1937 10 93.1000 1937 11 74.3000 1937 12 57.9000 1938 1 51.8000 1938 2 55.0000 1938 3 58.6000 1938 4 55.3000 1938 5 52.2000 1938 6 53.8000 1938 7 51.2000 1938 8 61.3000 1938 9 63.2000 1938 10 66.8000 1938 11 76.2000 1938 12 71.1000 1939 1 70.5000 1939 2 74.3000 1939 3 77.5000 1939 4 71.3000 1939 5 72.2000 1939 6 75.7000 1939 7 71.4000 1939 8 83.3000 1939 9 89.1000 1939 10 105.800 1939 11 113.700 1939 12 106.900 1940 1 104.000 1940 2 92.2000 1940 3 83.1000 1940 4 84.0000 1940 5 92.5000 1940 6 99.1000 1940 7 103.000 1940 8 105.300 1940 9 106.200 1940 10 115.300 1940 11 114.500 1940 12 114.900 1941 1 122.300 1941 2 124.400 1941 3 124.800 1941 4 143.600 1941 5 148.600 1941 6 146.000 1941 7 146.600 1941 8 144.500 1941 9 145.600 1941 10 152.800 1941 11 144.100 1941 12 148.000 1942 1 151.500 1942 2 151.300 1942 3 149.000 1942 4 155.800 1942 5 149.100 1942 6 154.700 1942 7 153.300 1942 8 150.100 1942 9 163.700 1942 10 161.000 1942 11 160.700 1942 12 164.000