| Year | Count |
|---|---|
| 1910 | 301 |
| 1911 | 261 |
| 1912 | 301 |
| 1913 | 299 |
| 1914 | 312 |
| 1915 | 454 |
| 1916 | 424 |
| 1917 | 414 |
| 1918 | 425 |
| 1919 | 357 |
| 1919 | 12 |
| 1920 | 355 |
| 1921 | 364 |
| 1922 | 344 |
| 1923 | 234 |
| 1924 | 240 |
| 1925 | 339 |
| 1926 | 354 |
| 1927 | 403 |
| 1928 | 607 |
| 1929 | 383 |
| 1930 | 289 |
| 1931 | 328 |
| 1932 | 369 |
| 1933 | 283 |
| 1934 | 244 |
| 1935 | 233 |
| 1936 | 224 |
| 1937 | 182 |
| 1938 | 154 |
| 1939 | 162 |
| 1940 | 132 |
| 1941 | 123 |
| 1942 | 110 |
| 1943 | 126 |
| 1944 | 90 |
| 1945 | 83 |
| 1946 | 71 |
| 1947 | 79 |
| 1948 | 36 |
| 1949 | 41 |
| 1950 | 36 |
| 1951 | 45 |
| 1952 | 28 |
| 1953 | 23 |
| 1954 | 28 |
| 1960 | 5 |
| 1963 | 10 |