| Year | Count |
|---|---|
| 1910 | 24 |
| 1911 | 17 |
| 1912 | 56 |
| 1913 | 74 |
| 1914 | 61 |
| 1915 | 128 |
| 1916 | 152 |
| 1917 | 93 |
| 1918 | 144 |
| 1919 | 127 |
| 1920 | 106 |
| 1921 | 131 |
| 1922 | 92 |
| 1923 | 94 |
| 1924 | 69 |
| 1925 | 43 |
| 1926 | 47 |
| 1927 | 87 |
| 1928 | 72 |
| 1929 | 13 |
| 1930 | 45 |
| 1931 | 23 |
| 1932 | 81 |
| 1933 | 73 |
| 1934 | 27 |
| 1935 | 27 |
| 1936 | 14 |
| 1937 | 19 |
| 1938 | 16 |
| 1939 | 23 |
| 1940 | 19 |
| 1941 | 30 |
| 1942 | 15 |
| 1943 | 7 |
| 1945 | 7 |
| 1948 | 18 |
| 1952 | 17 |
| 1956 | 5 |
| 1957 | 10 |
| 1960 | 5 |