1929	100	100	100	100
1930	87.3	69.2	91.9	90.8
1931	78	46.1	83.5	85.2
1932	65.1	22.2	73.4	75.8
1933	61.7	21.8	72.6	71.9
1934	64.4	27.9	71.7	71.9
1935	67.9	41.7	74.7	72.9
1936	74.7	52.6	80.6	76.7
1937	75.7	59.5	83	76.9
1938	70.2	38.6	76.3	73.9
1939	73.2	49	78.7	74.6