| Value | Category | Cases | |
|---|---|---|---|
| 1984 | 2 |
0%
|
|
| 1985 | 2 |
0%
|
|
| 1986 | 7 |
0%
|
|
| 1987 | 14 |
0.1%
|
|
| 1988 | 33 |
0.2%
|
|
| 1989 | 47 |
0.3%
|
|
| 1990 | 86 |
0.6%
|
|
| 1991 | 89 |
0.6%
|
|
| 1992 | 128 |
0.9%
|
|
| 1993 | 165 |
1.2%
|
|
| 1994 | 223 |
1.6%
|
|
| 1995 | 230 |
1.6%
|
|
| 1996 | 263 |
1.9%
|
|
| 1997 | 316 |
2.2%
|
|
| 1998 | 352 |
2.5%
|
|
| 1999 | 379 |
2.7%
|
|
| 2000 | 422 |
3%
|
|
| 2001 | 406 |
2.9%
|
|
| 2002 | 481 |
3.4%
|
|
| 2003 | 531 |
3.8%
|
|
| 2004 | 604 |
4.3%
|
|
| 2005 | 547 |
3.9%
|
|
| 2006 | 608 |
4.3%
|
|
| 2007 | 675 |
4.8%
|
|
| 2008 | 733 |
5.2%
|
|
| 2009 | 687 |
4.9%
|
|
| 2010 | 745 |
5.3%
|
|
| 2011 | 780 |
5.5%
|
|
| 2012 | 781 |
5.6%
|
|
| 2013 | 799 |
5.7%
|
|
| 2014 | 767 |
5.5%
|
|
| 2015 | 683 |
4.9%
|
|
| 2016 | 684 |
4.9%
|
|
| 2017 | 607 |
4.3%
|
|
| 2018 | 146 |
1%
|
|
| 9997 | INCONSISTENT | 1 |
0%
|
| 9999 | NO RESPONSE | 35 |
0.2%
|