| Value | Category | Cases | |
|---|---|---|---|
| 1980 | 1 |
0%
|
|
| 1985 | 1 |
0%
|
|
| 1986 | 1 |
0%
|
|
| 1987 | 8 |
0.1%
|
|
| 1988 | 18 |
0.1%
|
|
| 1989 | 53 |
0.4%
|
|
| 1990 | 99 |
0.8%
|
|
| 1991 | 138 |
1.1%
|
|
| 1992 | 184 |
1.4%
|
|
| 1993 | 241 |
1.9%
|
|
| 1994 | 261 |
2%
|
|
| 1995 | 288 |
2.3%
|
|
| 1996 | 300 |
2.4%
|
|
| 1997 | 287 |
2.3%
|
|
| 1998 | 321 |
2.5%
|
|
| 1999 | 333 |
2.6%
|
|
| 2000 | 355 |
2.8%
|
|
| 2001 | 365 |
2.9%
|
|
| 2002 | 380 |
3%
|
|
| 2003 | 379 |
3%
|
|
| 2004 | 414 |
3.2%
|
|
| 2005 | 404 |
3.2%
|
|
| 2006 | 483 |
3.8%
|
|
| 2007 | 503 |
3.9%
|
|
| 2008 | 533 |
4.2%
|
|
| 2009 | 577 |
4.5%
|
|
| 2010 | 629 |
4.9%
|
|
| 2011 | 637 |
5%
|
|
| 2012 | 659 |
5.2%
|
|
| 2013 | 629 |
4.9%
|
|
| 2014 | 661 |
5.2%
|
|
| 2015 | 682 |
5.4%
|
|
| 2016 | 703 |
5.5%
|
|
| 2017 | 647 |
5.1%
|
|
| 2018 | 568 |
4.5%
|
|
| 9999 | NO RESPONSE | 0 |
0%
|