| Value | Category | Cases | |
|---|---|---|---|
| 1981 | 4 |
0%
|
|
| 1982 | 4 |
0%
|
|
| 1983 | 12 |
0%
|
|
| 1984 | 8 |
0%
|
|
| 1985 | 23 |
0%
|
|
| 1986 | 44 |
0%
|
|
| 1987 | 54 |
0.1%
|
|
| 1988 | 99 |
0.1%
|
|
| 1989 | 151 |
0.1%
|
|
| 1990 | 237 |
0.2%
|
|
| 1991 | 459 |
0.4%
|
|
| 1992 | 381 |
0.4%
|
|
| 1993 | 641 |
0.6%
|
|
| 1994 | 703 |
0.7%
|
|
| 1995 | 846 |
0.8%
|
|
| 1996 | 1399 |
1.3%
|
|
| 1997 | 1000 |
1%
|
|
| 1998 | 1508 |
1.4%
|
|
| 1999 | 1718 |
1.6%
|
|
| 2000 | 2001 |
1.9%
|
|
| 2001 | 2693 |
2.6%
|
|
| 2002 | 2137 |
2%
|
|
| 2003 | 3190 |
3%
|
|
| 2004 | 2974 |
2.8%
|
|
| 2005 | 3282 |
3.1%
|
|
| 2006 | 4073 |
3.9%
|
|
| 2007 | 3679 |
3.5%
|
|
| 2008 | 4166 |
4%
|
|
| 2009 | 4519 |
4.3%
|
|
| 2010 | 3994 |
3.8%
|
|
| 2011 | 5499 |
5.2%
|
|
| 2012 | 4495 |
4.3%
|
|
| 2013 | 5635 |
5.4%
|
|
| 2014 | 5483 |
5.2%
|
|
| 2015 | 5882 |
5.6%
|
|
| 2016 | 5398 |
5.1%
|
|
| 2017 | 6023 |
5.7%
|
|
| 2018 | 5742 |
5.5%
|
|
| 2019 | 5617 |
5.3%
|
|
| 2020 | 5063 |
4.8%
|
|
| 2021 | 4169 |
4%
|
|
| 9999 | NO RESPONSE | 13 |
0%
|