1919 5485.90 1920 1569.10 1921 633.800 1922 -93.0000 1923 1151.80 1924 872.700 1925 1615.40 1926 2076.30 1927 1074.30 1928 913.400 1929 1055.00 1930 -638.300 1931 -2045.10 1932 -3478.00 1933 -2352.00 1934 -353.300 1935 232.000 1936 1236.90 1937 435.000 1938 270.900