year  price incom quant advert
1910. 2.620 0.836 0.187 0.1383
1911. 2.867 0.798 0.218 0.4344
1912. 2.915 0.802 0.200 0.3092
1913. 3.400 0.827 0.135 0.1806
1914. 2.344 0.832 0.259 0.5570
1915. 2.534 0.830 0.247 0.6210
1916. 3.304 0.892 0.227 0.5435
1917. 2.632 0.925 0.258 0.6136
1918. 5.842 0.901 0.114 0.2204
1919. 4.022 0.858 0.227 0.3759
1920. 3.792 0.816 0.226 0.3587
1921. 2.217 0.701 0.299 0.6427
1922. 3.980 0.692 0.197 0.3409
1923. 2.682 0.814 0.280 0.7334
1924. 1.924 0.848 0.327 0.8155
1925. 3.867 0.834 0.249 0.6085
1926. 3.392 0.854 0.286 0.7184
1927. 3.379 0.866 0.322 0.8453
1928. 5.073 0.873 0.259 0.8948
1929. 2.227 0.917 0.444 1.3657
1930. 5.012 0.903 0.243 0.8096
1931. 2.022 0.820 0.417 1.8337
1932. 2.013 0.726 0.373 1.2544
1933. 1.584 0.636 0.387 1.1665
1934. 2.507 0.700 0.341 1.4092
1935. 2.011 0.745 0.463 1.9728
1936. 2.623 0.824 0.374 1.3354
1937. 3.051 0.902 0.370 1.2751
1938. 1.354 0.857 0.526 2.2123
1939. 1.307 0.868 0.521 1.5325
1940. 1.585 0.927 0.520 2.0202
1941. 1.997 1.031 0.584 2.4856
1942. 2.362 1.157 0.583 2.4783
1943. 3.492 1.322 0.592 1.3343
1944. 3.576 1.363 0.703 1.7287
1945. 3.559 1.419 0.726 1.7502
1946. 3.810 1.389 0.657 2.3292
1947. 1.665 1.278 0.734 2.1186
1948. 1.301 1.236 0.705 1.7493
1949. 1.699 1.261 0.634 1.4608
1950. 2.221 1.280 0.656 1.4789
1951. 1.847 1.329 0.726 1.4918
1952. 1.318 1.329 0.743 2.0569
1953. 1.495 1.370 0.740 2.0008
1954. 1.674 1.372 0.760 1.7980
1955. 1.695 1.403 0.771 2.1930
1956. 2.095 1.482 0.767 1.9494
1957. 1.763 1.501 0.751 2.0635
1958. 2.507 1.475 0.606 1.9575
1959. 2.586 1.502 0.711 2.7034