| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 1 |
0%
|
|
| 1981 | 2 |
0%
|
|
| 1982 | 10 |
0%
|
|
| 1983 | 16 |
0%
|
|
| 1984 | 62 |
0.1%
|
|
| 1985 | 133 |
0.1%
|
|
| 1986 | 289 |
0.2%
|
|
| 1987 | 391 |
0.3%
|
|
| 1988 | 863 |
0.7%
|
|
| 1989 | 773 |
0.6%
|
|
| 1990 | 1174 |
1%
|
|
| 1991 | 1390 |
1.1%
|
|
| 1992 | 1630 |
1.3%
|
|
| 1993 | 2117 |
1.7%
|
|
| 1994 | 2341 |
1.9%
|
|
| 1995 | 2641 |
2.2%
|
|
| 1996 | 3027 |
2.5%
|
|
| 1997 | 3109 |
2.6%
|
|
| 1998 | 3720 |
3.1%
|
|
| 1999 | 3541 |
2.9%
|
|
| 2000 | 4724 |
3.9%
|
|
| 2001 | 4093 |
3.4%
|
|
| 2002 | 4554 |
3.8%
|
|
| 2003 | 5157 |
4.3%
|
|
| 2004 | 5112 |
4.2%
|
|
| 2005 | 5104 |
4.2%
|
|
| 2006 | 5193 |
4.3%
|
|
| 2007 | 5371 |
4.4%
|
|
| 2008 | 5212 |
4.3%
|
|
| 2009 | 4903 |
4%
|
|
| 2010 | 4855 |
4%
|
|
| 2011 | 4973 |
4.1%
|
|
| 2012 | 4939 |
4.1%
|
|
| 2013 | 4956 |
4.1%
|
|
| 2014 | 4830 |
4%
|
|
| 2015 | 4844 |
4%
|
|
| 2016 | 4766 |
3.9%
|
|
| 2017 | 4636 |
3.8%
|
|
| 2018 | 4758 |
3.9%
|
|
| 2019 | 968 |
0.8%
|
|
| 9999 | NO RESPONSE | 6 |
0%
|