| Value | Category | Cases | |
|---|---|---|---|
| 1986 | 4 |
4.4%
|
|
| 2003 | 4 |
4.4%
|
|
| 2004 | 2 |
2.2%
|
|
| 2005 | 4 |
4.4%
|
|
| 2009 | 6 |
6.7%
|
|
| 2011 | 2 |
2.2%
|
|
| 2012 | 2 |
2.2%
|
|
| 2015 | 4 |
4.4%
|
|
| 2016 | 14 |
15.6%
|
|
| 2017 | 7 |
7.8%
|
|
| 2018 | 4 |
4.4%
|
|
| 2019 | 3 |
3.3%
|
|
| 2020 | 4 |
4.4%
|
|
| 2021 | 12 |
13.3%
|
|
| 2022 | 12 |
13.3%
|
|
| 2023 | 5 |
5.6%
|
|
| Missing value | 1 |
1.1%
|