| Value | Category | Cases | |
|---|---|---|---|
| 1984 | 1 |
0%
|
|
| 1985 | 1 |
0%
|
|
| 1986 | 3 |
0.1%
|
|
| 1987 | 2 |
0.1%
|
|
| 1988 | 12 |
0.3%
|
|
| 1989 | 20 |
0.6%
|
|
| 1990 | 23 |
0.6%
|
|
| 1991 | 29 |
0.8%
|
|
| 1992 | 46 |
1.3%
|
|
| 1993 | 55 |
1.5%
|
|
| 1994 | 56 |
1.6%
|
|
| 1995 | 76 |
2.1%
|
|
| 1996 | 74 |
2.1%
|
|
| 1997 | 87 |
2.4%
|
|
| 1998 | 97 |
2.7%
|
|
| 1999 | 122 |
3.4%
|
|
| 2000 | 114 |
3.2%
|
|
| 2001 | 139 |
3.9%
|
|
| 2002 | 146 |
4%
|
|
| 2003 | 133 |
3.7%
|
|
| 2004 | 139 |
3.9%
|
|
| 2005 | 132 |
3.7%
|
|
| 2006 | 125 |
3.5%
|
|
| 2007 | 126 |
3.5%
|
|
| 2008 | 153 |
4.2%
|
|
| 2009 | 129 |
3.6%
|
|
| 2010 | 168 |
4.7%
|
|
| 2011 | 136 |
3.8%
|
|
| 2012 | 176 |
4.9%
|
|
| 2013 | 145 |
4%
|
|
| 2014 | 155 |
4.3%
|
|
| 2015 | 153 |
4.2%
|
|
| 2016 | 157 |
4.4%
|
|
| 2017 | 152 |
4.2%
|
|
| 2018 | 156 |
4.3%
|
|
| 2019 | 142 |
3.9%
|
|
| 2020 | 7 |
0.2%
|
|
| 9999 | NO RESPONSE | 18 |
0.5%
|