| قيمة | فئة | حالات | |
|---|---|---|---|
| 1960 | 1 |
20%
|
|
| 1988 | 1 |
20%
|
|
| 2000 | 1 |
20%
|
|
| 2005 | 1 |
20%
|
|
| 2019 | 1 |
20%
|