| Year | Count |
|---|---|
| 1910 | 80 |
| 1911 | 101 |
| 1912 | 68 |
| 1913 | 81 |
| 1914 | 102 |
| 1915 | 132 |
| 1916 | 137 |
| 1917 | 108 |
| 1918 | 136 |
| 1919 | 124 |
| 1920 | 147 |
| 1921 | 160 |
| 1922 | 145 |
| 1923 | 119 |
| 1924 | 105 |
| 1925 | 154 |
| 1926 | 148 |
| 1927 | 116 |
| 1928 | 65 |
| 1929 | 110 |
| 1930 | 102 |
| 1931 | 35 |
| 1932 | 68 |
| 1933 | 73 |
| 1934 | 58 |
| 1935 | 58 |
| 1936 | 66 |
| 1937 | 62 |
| 1938 | 42 |
| 1939 | 30 |
| 1940 | 56 |
| 1941 | 45 |
| 1942 | 45 |
| 1943 | 22 |
| 1944 | 15 |
| 1945 | 30 |
| 1946 | 29 |
| 1947 | 18 |
| 1948 | 40 |
| 1949 | 32 |
| 1950 | 39 |
| 1951 | 28 |
| 1952 | 18 |
| 1953 | 35 |
| 1954 | 23 |
| 1955 | 26 |
| 1956 | 12 |
| 1957 | 26 |
| 1958 | 5 |
| 1959 | 17 |
| 1960 | 7 |
| 1962 | 21 |
| 1965 | 6 |
| 1968 | 15 |