| قيمة | فئة | حالات | |
|---|---|---|---|
| 1917 | 1 |
0.4%
|
|
| 1928 | 1 |
0.4%
|
|
| 1940 | 1 |
0.4%
|
|
| 1948 | 1 |
0.4%
|
|
| 1950 | 1 |
0.4%
|
|
| 1951 | 1 |
0.4%
|
|
| 1958 | 1 |
0.4%
|
|
| 1959 | 1 |
0.4%
|
|
| 1962 | 2 |
0.7%
|
|
| 1963 | 1 |
0.4%
|
|
| 1964 | 3 |
1.1%
|
|
| 1966 | 1 |
0.4%
|
|
| 1967 | 1 |
0.4%
|
|
| 1970 | 1 |
0.4%
|
|
| 1971 | 1 |
0.4%
|
|
| 1973 | 2 |
0.7%
|
|
| 1974 | 2 |
0.7%
|
|
| 1976 | 3 |
1.1%
|
|
| 1977 | 1 |
0.4%
|
|
| 1978 | 5 |
1.8%
|
|
| 1980 | 8 |
2.9%
|
|
| 1981 | 3 |
1.1%
|
|
| 1982 | 4 |
1.4%
|
|
| 1983 | 3 |
1.1%
|
|
| 1984 | 1 |
0.4%
|
|
| 1986 | 12 |
4.3%
|
|
| 1987 | 4 |
1.4%
|
|
| 1988 | 8 |
2.9%
|
|
| 1990 | 5 |
1.8%
|
|
| 1991 | 4 |
1.4%
|
|
| 1992 | 3 |
1.1%
|
|
| 1993 | 3 |
1.1%
|
|
| 1994 | 9 |
3.2%
|
|
| 1995 | 10 |
3.6%
|
|
| 1996 | 6 |
2.2%
|
|
| 1997 | 1 |
0.4%
|
|
| 1998 | 5 |
1.8%
|
|
| 1999 | 5 |
1.8%
|
|
| 2000 | 14 |
5%
|
|
| 2001 | 4 |
1.4%
|
|
| 2002 | 6 |
2.2%
|
|
| 2003 | 7 |
2.5%
|
|
| 2004 | 8 |
2.9%
|
|
| 2005 | 9 |
3.2%
|
|
| 2006 | 18 |
6.5%
|
|
| 2007 | 21 |
7.5%
|
|
| 2008 | 22 |
7.9%
|
|
| 2009 | 7 |
2.5%
|
|
| 2010 | 14 |
5%
|
|
| 2011 | 9 |
3.2%
|
|
| 2012 | 15 |
5.4%
|