1929	27140
1930	27000
1931	12890
1932	32010
1933	19570
1934	13030
1935	35070
1936	8879
1937	21060
1938	36000
1939	14330
1940	15210
1941	34780
1942	37500
1943	18080
1944	24050
1945	49950
1946	37720
1947	32280
1948	24820
1949	23650
1950	42800
1951	24090
1952	19270
1953	25590
1954	14320
1955	15790
1956	10100
1957	41390
1958	38370
1959	13810
1960	22490
1961	27000
1962	24230
1963	12450
1964	8970
1965	15350
1966	16910
1967	15310
1968	33390
1969	31700
1970	19590
1971	10800
1972	16710
1973	43560
1974	38050
1975	45020
1976	13000
1977	20190
1978	10470
1979	28010
1980	14850
1981	15240
1982	33070
1983	24760