| Années | Nombres d'actes |
|---|---|
| 1970 | 3 |
| 1971 | 49 |
| 1972 | 72 |
| 1973 | 85 |
| 1974 | 85 |
| 1975 | 81 |
| 1976 | 86 |
| 1977 | 105 |
| 1978 | 111 |
| 1979 | 102 |
| 1980 | 167 |
| 1981 | 160 |
| 1982 | 168 |
| 1983 | 164 |
| 1984 | 157 |
| 1985 | 166 |
| 1986 | 150 |
| 1987 | 150 |
| 1988 | 155 |
| 1989 | 153 |
| 1990 | 171 |
| 1991 | 160 |
| 1992 | 177 |
| 1993 | 176 |
| 1994 | 160 |
| 1995 | 150 |
| 1996 | 181 |
| 1997 | 219 |
| 1998 | 183 |
| 1999 | 187 |
| 2000 | 168 |
| 2001 | 153 |
| 2002 | 158 |
| 2003 | 153 |
| 2004 | 131 |
| 2005 | 158 |
| 2006 | 158 |
| 2007 | 173 |
| 2008 | 174 |
| 2009 | 152 |