| قيمة | فئة | حالات | |
|---|---|---|---|
| 1958 | 2 |
3.3%
|
|
| 1962 | 1 |
1.7%
|
|
| 1964 | 6 |
10%
|
|
| 1965 | 2 |
3.3%
|
|
| 1966 | 3 |
5%
|
|
| 1967 | 1 |
1.7%
|
|
| 1968 | 3 |
5%
|
|
| 1970 | 5 |
8.3%
|
|
| 1974 | 1 |
1.7%
|
|
| 1975 | 2 |
3.3%
|
|
| 1976 | 2 |
3.3%
|
|
| 1980 | 2 |
3.3%
|
|
| 1982 | 1 |
1.7%
|
|
| 1985 | 1 |
1.7%
|
|
| 1988 | 14 |
23.3%
|
|
| 1989 | 1 |
1.7%
|
|
| 1990 | 2 |
3.3%
|
|
| 1993 | 1 |
1.7%
|
|
| 1995 | 2 |
3.3%
|
|
| 1997 | 1 |
1.7%
|
|
| 1998 | 1 |
1.7%
|
|
| 2001 | 1 |
1.7%
|
|
| 2008 | 1 |
1.7%
|
|
| 2010 | 2 |
3.3%
|
|
| 2011 | 1 |
1.7%
|
|
| 2014 | 1 |
1.7%
|