| Year | Count |
|---|---|
| 1910 | 71 |
| 1911 | 49 |
| 1912 | 85 |
| 1913 | 87 |
| 1914 | 78 |
| 1915 | 107 |
| 1916 | 94 |
| 1917 | 116 |
| 1918 | 153 |
| 1919 | 144 |
| 1920 | 127 |
| 1921 | 113 |
| 1922 | 125 |
| 1923 | 75 |
| 1924 | 94 |
| 1925 | 147 |
| 1926 | 152 |
| 1927 | 150 |
| 1928 | 144 |
| 1929 | 124 |
| 1930 | 112 |
| 1931 | 68 |
| 1932 | 94 |
| 1933 | 94 |
| 1934 | 111 |
| 1935 | 68 |
| 1936 | 103 |
| 1937 | 62 |
| 1938 | 96 |
| 1939 | 96 |
| 1940 | 61 |
| 1941 | 59 |
| 1942 | 57 |
| 1943 | 24 |
| 1944 | 20 |
| 1945 | 37 |
| 1946 | 22 |
| 1947 | 40 |
| 1948 | 24 |
| 1949 | 50 |
| 1950 | 37 |
| 1951 | 48 |
| 1952 | 21 |
| 1953 | 16 |
| 1954 | 28 |
| 1955 | 24 |
| 1956 | 18 |
| 1957 | 35 |
| 1958 | 13 |
| 1959 | 6 |
| 1960 | 5 |
| 1961 | 19 |
| 1963 | 5 |
| 1966 | 5 |
| 1967 | 5 |