| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 3 |
0%
|
|
| 1985 | 2 |
0%
|
|
| 1986 | 2 |
0%
|
|
| 1987 | 29 |
0.2%
|
|
| 1988 | 80 |
0.6%
|
|
| 1989 | 204 |
1.6%
|
|
| 1990 | 285 |
2.2%
|
|
| 1991 | 394 |
3.1%
|
|
| 1992 | 431 |
3.4%
|
|
| 1993 | 504 |
4%
|
|
| 1994 | 587 |
4.6%
|
|
| 1995 | 449 |
3.5%
|
|
| 1996 | 441 |
3.5%
|
|
| 1997 | 488 |
3.8%
|
|
| 1998 | 371 |
2.9%
|
|
| 1999 | 435 |
3.4%
|
|
| 2000 | 415 |
3.3%
|
|
| 2001 | 418 |
3.3%
|
|
| 2002 | 539 |
4.2%
|
|
| 2003 | 387 |
3%
|
|
| 2004 | 434 |
3.4%
|
|
| 2005 | 451 |
3.5%
|
|
| 2006 | 551 |
4.3%
|
|
| 2007 | 534 |
4.2%
|
|
| 2008 | 496 |
3.9%
|
|
| 2009 | 564 |
4.4%
|
|
| 2010 | 537 |
4.2%
|
|
| 2011 | 507 |
4%
|
|
| 2012 | 512 |
4%
|
|
| 2013 | 390 |
3.1%
|
|
| 2014 | 350 |
2.7%
|
|
| 2015 | 332 |
2.6%
|
|
| 2016 | 330 |
2.6%
|
|
| 2017 | 159 |
1.2%
|
|
| 2018 | 131 |
1%
|
|
| 9999 | NO RESPONSE | 0 |
0%
|