| Year | Count |
|---|---|
| 1910 | 99 |
| 1911 | 95 |
| 1912 | 74 |
| 1913 | 143 |
| 1914 | 108 |
| 1915 | 153 |
| 1916 | 194 |
| 1917 | 194 |
| 1918 | 230 |
| 1919 | 194 |
| 1920 | 174 |
| 1921 | 206 |
| 1922 | 208 |
| 1923 | 102 |
| 1924 | 121 |
| 1925 | 277 |
| 1926 | 255 |
| 1927 | 240 |
| 1928 | 246 |
| 1929 | 210 |
| 1930 | 117 |
| 1931 | 173 |
| 1932 | 197 |
| 1933 | 135 |
| 1934 | 143 |
| 1935 | 130 |
| 1936 | 133 |
| 1937 | 110 |
| 1938 | 92 |
| 1939 | 164 |
| 1940 | 132 |
| 1941 | 41 |
| 1942 | 49 |
| 1943 | 33 |
| 1944 | 43 |
| 1945 | 33 |
| 1946 | 30 |
| 1947 | 33 |
| 1948 | 24 |
| 1949 | 32 |
| 1950 | 18 |
| 1951 | 42 |
| 1952 | 12 |
| 1953 | 60 |
| 1954 | 24 |
| 1955 | 36 |
| 1956 | 38 |
| 1957 | 14 |
| 1958 | 20 |
| 1960 | 16 |
| 1961 | 24 |
| 1963 | 12 |
| 1964 | 12 |