| Value | Category | Cases | |
|---|---|---|---|
| 1995 | 1 |
0.1%
|
|
| 1996 | 1 |
0.1%
|
|
| 1997 | 1 |
0.1%
|
|
| 2000 | 1 |
0.1%
|
|
| 2001 | 2 |
0.2%
|
|
| 2002 | 2 |
0.2%
|
|
| 2003 | 5 |
0.5%
|
|
| 2004 | 2 |
0.2%
|
|
| 2005 | 7 |
0.7%
|
|
| 2006 | 15 |
1.4%
|
|
| 2007 | 16 |
1.5%
|
|
| 2008 | 10 |
0.9%
|
|
| 2009 | 11 |
1%
|
|
| 2010 | 7 |
0.7%
|
|
| 2011 | 3 |
0.3%
|
|
| 2012 | 5 |
0.5%
|
|
| 2013 | 120 |
11.3%
|
|
| 2014 | 632 |
59.7%
|
|
| 2015 | 185 |
17.5%
|
|
| 2016 | 27 |
2.5%
|
|
| 2017 | 6 |
0.6%
|
|
| Missing value | 159 |