| Value | Category | Cases | |
|---|---|---|---|
| 1987 | 2 |
0%
|
|
| 1988 | 1 |
0%
|
|
| 1989 | 5 |
0%
|
|
| 1990 | 9 |
0%
|
|
| 1991 | 21 |
0.1%
|
|
| 1992 | 64 |
0.3%
|
|
| 1993 | 72 |
0.3%
|
|
| 1994 | 107 |
0.5%
|
|
| 1995 | 182 |
0.8%
|
|
| 1996 | 158 |
0.7%
|
|
| 1997 | 241 |
1.1%
|
|
| 1998 | 264 |
1.2%
|
|
| 1999 | 307 |
1.3%
|
|
| 2000 | 373 |
1.6%
|
|
| 2001 | 367 |
1.6%
|
|
| 2002 | 380 |
1.7%
|
|
| 2003 | 412 |
1.8%
|
|
| 2004 | 445 |
1.9%
|
|
| 2005 | 409 |
1.8%
|
|
| 2006 | 498 |
2.2%
|
|
| 2007 | 680 |
3%
|
|
| 2008 | 793 |
3.5%
|
|
| 2009 | 871 |
3.8%
|
|
| 2010 | 880 |
3.8%
|
|
| 2011 | 1103 |
4.8%
|
|
| 2012 | 1225 |
5.3%
|
|
| 2013 | 1581 |
6.9%
|
|
| 2014 | 1912 |
8.3%
|
|
| 2015 | 2143 |
9.3%
|
|
| 2016 | 2276 |
9.9%
|
|
| 2017 | 2502 |
10.9%
|
|
| 2018 | 2647 |
11.5%
|
|
| 9999 | NO RESPONSE | 5 |
0%
|