| Value | Category | Cases | |
|---|---|---|---|
| 1968 | 1 |
0.5%
|
|
| 1982 | 1 |
0.5%
|
|
| 1985 | 1 |
0.5%
|
|
| 1987 | 2 |
0.9%
|
|
| 1988 | 3 |
1.4%
|
|
| 1989 | 2 |
0.9%
|
|
| 1990 | 5 |
2.3%
|
|
| 1991 | 2 |
0.9%
|
|
| 1993 | 3 |
1.4%
|
|
| 1995 | 3 |
1.4%
|
|
| 1996 | 3 |
1.4%
|
|
| 1997 | 1 |
0.5%
|
|
| 1998 | 9 |
4.2%
|
|
| 1999 | 5 |
2.3%
|
|
| 2000 | 14 |
6.5%
|
|
| 2001 | 3 |
1.4%
|
|
| 2002 | 2 |
0.9%
|
|
| 2003 | 12 |
5.6%
|
|
| 2004 | 3 |
1.4%
|
|
| 2005 | 13 |
6%
|
|
| 2006 | 4 |
1.9%
|
|
| 2007 | 3 |
1.4%
|
|
| 2008 | 10 |
4.7%
|
|
| 2009 | 11 |
5.1%
|
|
| 2010 | 22 |
10.2%
|
|
| 2011 | 8 |
3.7%
|
|
| 2012 | 10 |
4.7%
|
|
| 2013 | 11 |
5.1%
|
|
| 2014 | 10 |
4.7%
|
|
| 2015 | 14 |
6.5%
|
|
| 2016 | 13 |
6%
|
|
| 2017 | 5 |
2.3%
|
|
| 2018 | 3 |
1.4%
|
|
| 9998 | Ne sait pas | 3 |
1.4%
|
| Sysmiss | 91 |