1	   1
1935	  59
1950	 287
1951	 558
1952	 581
1953	 679
1954	 819
1955	 459
1956	 543
1957	1061
1958	1385
1959	1742
1960	1724
1961	 733
1962	 487
1963	 519
1964	 146
1965	 104
1966	 106
1967	  62
1968	  58
1969	  22
1970	  21
1971	  19
1972	 101
1973	   6
1974	   3
1975	   1