| Year | Count |
|---|---|
| 1910 | 172 |
| 1911 | 157 |
| 1912 | 160 |
| 1913 | 178 |
| 1914 | 187 |
| 1915 | 247 |
| 1916 | 212 |
| 1917 | 220 |
| 1918 | 267 |
| 1919 | 230 |
| 1920 | 185 |
| 1921 | 195 |
| 1922 | 172 |
| 1923 | 104 |
| 1924 | 135 |
| 1925 | 205 |
| 1926 | 145 |
| 1927 | 179 |
| 1928 | 182 |
| 1929 | 119 |
| 1930 | 198 |
| 1931 | 183 |
| 1932 | 161 |
| 1933 | 126 |
| 1934 | 111 |
| 1935 | 176 |
| 1936 | 116 |
| 1937 | 67 |
| 1938 | 80 |
| 1939 | 65 |
| 1940 | 74 |
| 1941 | 71 |
| 1942 | 54 |
| 1943 | 38 |
| 1944 | 25 |
| 1945 | 53 |
| 1946 | 39 |
| 1947 | 44 |
| 1948 | 27 |
| 1950 | 14 |
| 1951 | 14 |
| 1952 | 13 |
| 1953 | 7 |
| 1954 | 14 |
| 1955 | 15 |
| 1956 | 10 |
| 1957 | 6 |
| 1959 | 5 |