| Années | Nombres d'actes |
|---|---|
| 1970 | 20 |
| 1971 | 102 |
| 1972 | 179 |
| 1973 | 155 |
| 1974 | 161 |
| 1975 | 171 |
| 1976 | 186 |
| 1977 | 245 |
| 1978 | 247 |
| 1979 | 282 |
| 1980 | 281 |
| 1981 | 295 |
| 1982 | 275 |
| 1983 | 348 |
| 1984 | 299 |
| 1985 | 291 |
| 1986 | 308 |
| 1987 | 298 |
| 1988 | 349 |
| 1989 | 331 |
| 1990 | 365 |
| 1991 | 402 |
| 1992 | 380 |
| 1993 | 425 |
| 1994 | 397 |
| 1995 | 392 |
| 1996 | 399 |
| 1997 | 322 |
| 1998 | 379 |
| 1999 | 351 |
| 2000 | 372 |
| 2001 | 364 |
| 2002 | 367 |
| 2003 | 415 |
| 2004 | 389 |
| 2005 | 390 |
| 2006 | 400 |
| 2007 | 384 |
| 2008 | 362 |
| 2009 | 440 |
| 2010 | 423 |
| 2011 | 387 |
| 2012 | 61 |
| 2013 | 16 |
| 2014 | 37 |
| 2015 | 38 |
| 2016 | 32 |
| 2017 | 29 |
| 2018 | 22 |
| 2019 | 16 |
| 2020 | 30 |
| 2021 | 24 |
| 2022 | 27 |