|   | Year | Count |
| 1 | 1930 | 34 |
| 2 | 1931 | 20 |
| 3 | 1932 | 80 |
| 4 | 1933 | 219 |
| 5 | 1934 | 112 |
| 6 | 1935 | 335 |
| 7 | 1936 | 296 |
| 8 | 1937 | 381 |
| 9 | 1938 | 77 |
| 10 | 1939 | 170 |
| 11 | 1940 | 507 |
| 12 | 1941 | 343 |
| 13 | 1942 | 408 |
| 14 | 1943 | 448 |
| 15 | 1944 | 340 |
| 16 | 1945 | 400 |
| 17 | 1946 | 251 |
| 18 | 1947 | 300 |
| 19 | 1948 | 524 |
| 20 | 1949 | 547 |
| 21 | 1950 | 430 |
| 22 | 1951 | 355 |
| 23 | 1952 | 332 |
| 24 | 1953 | 367 |
| 25 | 1954 | 453 |
| 26 | 1955 | 544 |
| 27 | 1956 | 335 |
| 28 | 1957 | 380 |
| 29 | 1958 | 233 |
| 30 | 1959 | 427 |
| 31 | 1960 | 82 |
| 32 | 1961 | 53 |
| 33 | 1962 | 81 |
| 34 | 1963 | 166 |
| 35 | 1964 | 34 |
| 36 | 1965 | 72 |
| 37 | 1966 | 26 |
| 38 | 1967 | 68 |
| 39 | 1968 | 32 |
| 40 | 1969 | 23 |
|   | TOTAL | 10285 |