| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 32 |
0%
|
|
| 1981 | 20 |
0%
|
|
| 1982 | 43 |
0.1%
|
|
| 1983 | 55 |
0.1%
|
|
| 1984 | 125 |
0.2%
|
|
| 1985 | 312 |
0.4%
|
|
| 1986 | 380 |
0.5%
|
|
| 1987 | 496 |
0.7%
|
|
| 1988 | 902 |
1.3%
|
|
| 1989 | 1277 |
1.8%
|
|
| 1990 | 1668 |
2.3%
|
|
| 1991 | 1838 |
2.6%
|
|
| 1992 | 1658 |
2.3%
|
|
| 1993 | 2065 |
2.9%
|
|
| 1994 | 2472 |
3.5%
|
|
| 1995 | 2648 |
3.7%
|
|
| 1996 | 2228 |
3.1%
|
|
| 1997 | 2377 |
3.3%
|
|
| 1998 | 2330 |
3.3%
|
|
| 1999 | 2598 |
3.7%
|
|
| 2000 | 2774 |
3.9%
|
|
| 2001 | 2801 |
3.9%
|
|
| 2002 | 2810 |
4%
|
|
| 2003 | 2768 |
3.9%
|
|
| 2004 | 3458 |
4.9%
|
|
| 2005 | 3948 |
5.6%
|
|
| 2006 | 3694 |
5.2%
|
|
| 2007 | 3264 |
4.6%
|
|
| 2008 | 3142 |
4.4%
|
|
| 2009 | 2841 |
4%
|
|
| 2010 | 2801 |
3.9%
|
|
| 2011 | 2420 |
3.4%
|
|
| 2012 | 1990 |
2.8%
|
|
| 2013 | 1716 |
2.4%
|
|
| 2014 | 1662 |
2.3%
|
|
| 2015 | 1310 |
1.8%
|
|
| 2016 | 1005 |
1.4%
|
|
| 2017 | 806 |
1.1%
|
|
| 2018 | 217 |
0.3%
|
|
| 9999 | NO RESPONSE | 35 |
0%
|