| Value | Category | Cases | |
|---|---|---|---|
| 1993 | 10 |
8.1%
|
|
| 1994 | 2 |
1.6%
|
|
| 1997 | 2 |
1.6%
|
|
| 1998 | 2 |
1.6%
|
|
| 2000 | 5 |
4.1%
|
|
| 2001 | 2 |
1.6%
|
|
| 2004 | 4 |
3.3%
|
|
| 2009 | 1 |
0.8%
|
|
| 2011 | 32 |
26%
|
|
| 2012 | 9 |
7.3%
|
|
| 2013 | 10 |
8.1%
|
|
| 2014 | 6 |
4.9%
|
|
| 2015 | 9 |
7.3%
|
|
| 2016 | 2 |
1.6%
|
|
| 2017 | 1 |
0.8%
|
|
| 2018 | 4 |
3.3%
|
|
| 2019 | 1 |
0.8%
|
|
| 2020 | 5 |
4.1%
|
|
| 2021 | 3 |
2.4%
|
|
| 2022 | 4 |
3.3%
|
|
| Missing value | 9 |
7.3%
|