| Années | Nombres d'actes | |
|---|---|---|
| 1972 | 1 |
|
| ... | ||
| 3 années | ||
| ... | ||
| 1976 | 1 |
|
| ... | ||
| 3 années | ||
| ... | ||
| 1980 | 1 |
|
| 1981 | 2 |
|
| 1982 | 0 | |
| 1983 | 2 |
|
| ... | ||
| 3 années | ||
| ... | ||
| 1987 | 1 |
|
| 1988 | 1 |
|
| 1989 | 1 |
|
| ... | ||
| 3 années | ||
| ... | ||
| 1993 | 1 |
|
| 1994 | 1 |
|
| 1995 | 1 |
|
| ... | ||
| 3 années | ||
| ... | ||
| 1999 | 1 |
|
| 2000 | 3 |
|
| 2001 | 0 | |
| 2002 | 2 |
|
| 2003 | 1 |
|
| 2004 | 1 |
|
| 2005 | 1 |
|
| 2006 | 2 |
|
| 2007 | 0 | |
| 2008 | 0 | |
| 2009 | 1 |
|
| 2010 | 1 |
|
| 2011 | 1 |
|
| 2012 | 1 |
|
| 2013 | 1 |
|
| 2014 | 4 |
|
| 2015 | 0 | |
| 2016 | 1 |
|
| 2017 | 0 | |
| 2018 | 3 |
|
| 2019 | 2 |