| Value | Category | Cases | |
|---|---|---|---|
| 1983 | 1 |
0%
|
|
| 1985 | 1 |
0%
|
|
| 1987 | 1 |
0%
|
|
| 1988 | 3 |
0%
|
|
| 1989 | 1 |
0%
|
|
| 1990 | 4 |
0%
|
|
| 1992 | 1 |
0%
|
|
| 1993 | 3 |
0%
|
|
| 1994 | 3 |
0%
|
|
| 1995 | 15 |
0%
|
|
| 1996 | 6 |
0%
|
|
| 1997 | 2 |
0%
|
|
| 1998 | 9 |
0%
|
|
| 1999 | 24 |
0%
|
|
| 2000 | 50 |
0%
|
|
| 2001 | 33 |
0%
|
|
| 2002 | 43 |
0%
|
|
| 2003 | 37 |
0%
|
|
| 2004 | 117 |
0.1%
|
|
| 2005 | 118 |
0.1%
|
|
| 2006 | 137 |
0.1%
|
|
| 2007 | 170 |
0.2%
|
|
| 2008 | 281 |
0.3%
|
|
| 2009 | 494 |
0.5%
|
|
| 2010 | 582 |
0.5%
|
|
| 2011 | 564 |
0.5%
|
|
| 2012 | 993 |
0.9%
|
|
| 2013 | 1342 |
1.3%
|
|
| 2014 | 2525 |
2.4%
|
|
| 2015 | 3916 |
3.7%
|
|
| 2016 | 7605 |
7.2%
|
|
| 2017 | 16159 |
15.2%
|
|
| 2018 | 53453 |
50.4%
|
|
| 2019 | 17321 |
16.3%
|