| Year | Count |
|---|---|
| 1910 | 14 |
| 1911 | 12 |
| 1912 | 14 |
| 1913 | 23 |
| 1914 | 65 |
| 1915 | 102 |
| 1916 | 125 |
| 1917 | 146 |
| 1918 | 157 |
| 1919 | 109 |
| 1920 | 84 |
| 1921 | 64 |
| 1922 | 108 |
| 1923 | 44 |
| 1924 | 52 |
| 1925 | 78 |
| 1926 | 52 |
| 1927 | 61 |
| 1928 | 83 |
| 1929 | 59 |
| 1930 | 74 |
| 1931 | 40 |
| 1932 | 38 |
| 1933 | 34 |
| 1934 | 14 |
| 1935 | 47 |
| 1936 | 12 |
| 1937 | 26 |
| 1938 | 36 |
| 1939 | 7 |
| 1940 | 12 |
| 1941 | 18 |
| 1942 | 5 |
| 1943 | 5 |
| 1949 | 10 |
| 1950 | 6 |
| 1955 | 5 |