| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1980 | 1 |
0.2%
|
| 2 | 1985 | 1 |
0.2%
|
| 3 | 1986 | 1 |
0.2%
|
| 4 | 1987 | 1 |
0.2%
|
| 5 | 2000 | 1 |
0.2%
|
| 6 | 2009 | 2 |
0.4%
|
| 7 | 2012 | 2 |
0.4%
|
| 8 | 2016 | 4 |
0.8%
|
| 9 | 2017 | 13 |
2.6%
|
| 10 | 2018 | 75 |
14.9%
|
| 11 | 2019 | 266 |
52.7%
|
| 12 | 2020 | 138 |
27.3%
|