| Value | Category | Cases | |
|---|---|---|---|
| 1982 | 1 |
0%
|
|
| 1983 | 1 |
0%
|
|
| 1984 | 4 |
0%
|
|
| 1985 | 3 |
0%
|
|
| 1986 | 7 |
0%
|
|
| 1987 | 5 |
0%
|
|
| 1988 | 8 |
0%
|
|
| 1989 | 19 |
0%
|
|
| 1990 | 43 |
0.1%
|
|
| 1991 | 32 |
0%
|
|
| 1992 | 48 |
0.1%
|
|
| 1993 | 70 |
0.1%
|
|
| 1994 | 137 |
0.2%
|
|
| 1995 | 116 |
0.1%
|
|
| 1996 | 127 |
0.2%
|
|
| 1997 | 157 |
0.2%
|
|
| 1998 | 160 |
0.2%
|
|
| 1999 | 312 |
0.4%
|
|
| 2000 | 344 |
0.4%
|
|
| 2001 | 437 |
0.5%
|
|
| 2002 | 437 |
0.5%
|
|
| 2003 | 580 |
0.7%
|
|
| 2004 | 786 |
1%
|
|
| 2005 | 866 |
1.1%
|
|
| 2006 | 989 |
1.2%
|
|
| 2007 | 1234 |
1.5%
|
|
| 2008 | 1071 |
1.3%
|
|
| 2009 | 1847 |
2.2%
|
|
| 2010 | 1919 |
2.3%
|
|
| 2011 | 2315 |
2.8%
|
|
| 2012 | 2723 |
3.3%
|
|
| 2013 | 3792 |
4.6%
|
|
| 2014 | 5028 |
6.1%
|
|
| 2015 | 7780 |
9.4%
|
|
| 2016 | 10400 |
12.6%
|
|
| 2017 | 12716 |
15.4%
|
|
| 2018 | 13766 |
16.7%
|
|
| 2019 | 10914 |
13.2%
|
|
| 2020 | 1021 |
1.2%
|
|
| 9997 | Inconsistent | 251 |
0.3%
|
| 9999 | NO RESPONSE | 10 |
0%
|