| Year | Count |
|---|---|
| 1910 | 64 |
| 1911 | 12 |
| 1912 | 83 |
| 1913 | 64 |
| 1914 | 138 |
| 1915 | 131 |
| 1916 | 185 |
| 1917 | 155 |
| 1918 | 161 |
| 1919 | 157 |
| 1920 | 159 |
| 1921 | 178 |
| 1922 | 143 |
| 1923 | 185 |
| 1924 | 192 |
| 1925 | 161 |
| 1926 | 167 |
| 1927 | 217 |
| 1928 | 190 |
| 1929 | 103 |
| 1930 | 179 |
| 1931 | 170 |
| 1932 | 155 |
| 1933 | 105 |
| 1934 | 134 |
| 1935 | 130 |
| 1936 | 112 |
| 1937 | 140 |
| 1938 | 118 |
| 1939 | 117 |
| 1940 | 94 |
| 1941 | 137 |
| 1942 | 102 |
| 1943 | 78 |
| 1944 | 36 |
| 1945 | 43 |
| 1946 | 54 |
| 1947 | 42 |
| 1948 | 36 |
| 1949 | 17 |
| 1950 | 40 |
| 1951 | 38 |
| 1952 | 50 |
| 1953 | 43 |
| 1954 | 10 |
| 1955 | 40 |
| 1956 | 11 |
| 1957 | 35 |
| 1958 | 5 |
| 1959 | 28 |
| 1960 | 7 |
| 1961 | 25 |
| 1963 | 6 |