| 1868 | 5 |
| 1869 | 9 |
| 1870 | 11 |
| 1871 | 16 |
| 1872 | 23 |
| 1873 | 29 |
| 1875 | 36 |
| 1876 | 41 |
| 1877 | 49 |
| 1878 | 53 |
| 1879 | 65 |
| 1880 | 71 |
| 1881 | 82 |
| 1882 | 89 |
| 1883 | 93 |
| 1884 | 101 |
| 1885 | 108 |
| 1886 | 115 |
| 1887 | 123 |
| 1888 | 131 |
| 1889 | 137 |
| 1890 | 141 |
| 1891 | 146 |
| 1892 | 153 |
| 1893 | 157 |
| 1894 | 158 |
| 1895 | 163 |
| 1896 | 167 |
| 1897 | 169 |
| 1899 | 170 |
| 1901 | 171 |
| 1902 | 174 |
| 1903 | 175 |
| 1904 | 198 |
| 1905 | 228 |
| 1906 | 253 |
| 1907 | 276 |