| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1982 | 4 |
0.6%
|
| 2 | 1983 | 1 |
0.2%
|
| 3 | 1997 | 1 |
0.2%
|
| 4 | 2002 | 1 |
0.2%
|
| 5 | 2012 | 391 |
62.7%
|
| 6 | 2013 | 40 |
6.4%
|
| 7 | 2014 | 3 |
0.5%
|
| 8 | 2015 | 19 |
3%
|
| 9 | 2016 | 7 |
1.1%
|
| 10 | 2017 | 12 |
1.9%
|
| 11 | 2018 | 17 |
2.7%
|
| 12 | 2019 | 9 |
1.4%
|
| Missing value | 119 |
19.1%
|