| Year | Count |
|---|---|
| 1910 | 81 |
| 1911 | 48 |
| 1912 | 62 |
| 1913 | 80 |
| 1914 | 79 |
| 1915 | 118 |
| 1916 | 105 |
| 1917 | 133 |
| 1918 | 110 |
| 1919 | 124 |
| 1920 | 103 |
| 1921 | 102 |
| 1922 | 109 |
| 1923 | 65 |
| 1924 | 67 |
| 1925 | 91 |
| 1926 | 94 |
| 1927 | 61 |
| 1928 | 89 |
| 1929 | 30 |
| 1930 | 70 |
| 1931 | 70 |
| 1932 | 31 |
| 1933 | 64 |
| 1934 | 41 |
| 1935 | 46 |
| 1936 | 13 |
| 1937 | 49 |
| 1938 | 15 |
| 1939 | 35 |
| 1940 | 5 |
| 1941 | 12 |
| 1942 | 10 |
| 1943 | 18 |
| 1944 | 17 |
| 1945 | 10 |
| 1949 | 6 |