| Années | Nombres d'actes |
|---|---|
| 1969 | 1 |
| 1970 | 13 |
| 1971 | 52 |
| 1972 | 62 |
| 1973 | 68 |
| 1974 | 95 |
| 1975 | 68 |
| 1976 | 77 |
| 1977 | 56 |
| 1978 | 75 |
| 1979 | 66 |
| 1980 | 66 |
| 1981 | 75 |
| 1982 | 70 |
| 1983 | 100 |
| 1984 | 66 |
| 1985 | 89 |
| 1986 | 70 |
| 1987 | 81 |
| 1988 | 55 |
| 1989 | 77 |
| 1990 | 105 |
| 1991 | 121 |
| 1992 | 109 |
| 1993 | 99 |
| 1994 | 99 |
| 1995 | 93 |
| 1996 | 94 |
| 1997 | 73 |
| 1998 | 120 |
| 1999 | 143 |
| 2000 | 101 |
| 2001 | 91 |
| 2002 | 81 |
| 2003 | 75 |
| 2004 | 71 |
| 2005 | 71 |
| 2006 | 62 |
| 2007 | 50 |
| 2008 | 57 |
| 2009 | 68 |
| 2010 | 56 |
| 2011 | 65 |
| 2012 | 74 |
| 2013 | 76 |
| 2014 | 73 |
| 2015 | 74 |
| 2016 | 86 |
| 2017 | 87 |
| 2018 | 89 |
| 2019 | 81 |
| 2020 | 91 |
| 2021 | 69 |
| 2022 | 90 |
| 2023 | 58 |