| Années | Nombres d'actes |
|---|---|
| Improbable | 12 |
| 1853 | 12 |
| 1854 | 9 |
| 1855 | 11 |
| 1856 | 11 |
| 1857 | 7 |
| 1858 | 12 |
| 1859 | 6 |
| 1860 | 12 |
| 1861 | 9 |
| 1862 | 12 |
| 1863 | 12 |
| 1864 | 12 |
| 1865 | 10 |
| 1866 | 11 |
| 1867 | 6 |
| 1868 | 9 |
| 1869 | 13 |
| 1870 | 3 |
| 1871 | 13 |
| 1872 | 13 |
| 1873 | 10 |
| 1874 | 19 |
| 1875 | 13 |
| 1876 | 13 |
| 1877 | 7 |
| 1878 | 9 |
| 1879 | 11 |
| 1880 | 18 |
| 1881 | 9 |
| 1882 | 11 |
| 1883 | 11 |
| 1884 | 13 |
| 1885 | 11 |
| 1886 | 16 |
| 1887 | 8 |
| 1888 | 9 |
| 1889 | 12 |
| 1890 | 7 |
| 1891 | 13 |
| 1892 | 7 |
| 1893 | 28 |
| 1894 | 36 |
| 1895 | 22 |
| 1896 | 28 |
| 1897 | 32 |
| 1898 | 38 |
| 1899 | 36 |
| 1900 | 18 |
| 1901 | 20 |
| 1902 | 22 |