| Year | Count |
|---|---|
| 1910 | 102 |
| 1911 | 71 |
| 1912 | 137 |
| 1913 | 166 |
| 1914 | 138 |
| 1915 | 221 |
| 1916 | 213 |
| 1917 | 188 |
| 1918 | 202 |
| 1919 | 156 |
| 1920 | 201 |
| 1921 | 176 |
| 1922 | 135 |
| 1923 | 84 |
| 1924 | 98 |
| 1925 | 186 |
| 1925 | 5 |
| 1926 | 98 |
| 1927 | 142 |
| 1928 | 162 |
| 1929 | 111 |
| 1930 | 125 |
| 1930 | 15 |
| 1931 | 94 |
| 1932 | 100 |
| 1933 | 99 |
| 1934 | 84 |
| 1935 | 144 |
| 1936 | 62 |
| 1937 | 73 |
| 1938 | 82 |
| 1939 | 40 |
| 1940 | 64 |
| 1941 | 72 |
| 1942 | 54 |
| 1943 | 22 |
| 1944 | 24 |
| 1945 | 28 |
| 1946 | 21 |
| 1947 | 25 |
| 1948 | 19 |
| 1949 | 37 |
| 1950 | 17 |
| 1951 | 25 |
| 1952 | 44 |
| 1953 | 15 |
| 1954 | 12 |
| 1955 | 11 |
| 1956 | 10 |
| 1957 | 14 |
| 1958 | 6 |
| 1959 | 10 |
| 1960 | 12 |