Value | Category | Cases | |
---|---|---|---|
1960 | 1 |
0.3%
|
|
1968 | 1 |
0.3%
|
|
1979 | 1 |
0.3%
|
|
1982 | 2 |
0.6%
|
|
1983 | 1 |
0.3%
|
|
1984 | 1 |
0.3%
|
|
1985 | 1 |
0.3%
|
|
1986 | 3 |
0.9%
|
|
1988 | 1 |
0.3%
|
|
1989 | 3 |
0.9%
|
|
1990 | 2 |
0.6%
|
|
1992 | 2 |
0.6%
|
|
1993 | 1 |
0.3%
|
|
1994 | 4 |
1.2%
|
|
1995 | 3 |
0.9%
|
|
1996 | 3 |
0.9%
|
|
1997 | 7 |
2.1%
|
|
1998 | 7 |
2.1%
|
|
1999 | 7 |
2.1%
|
|
2000 | 15 |
4.5%
|
|
2001 | 14 |
4.2%
|
|
2002 | 15 |
4.5%
|
|
2003 | 6 |
1.8%
|
|
2004 | 10 |
3%
|
|
2005 | 9 |
2.7%
|
|
2006 | 14 |
4.2%
|
|
2007 | 16 |
4.8%
|
|
2008 | 23 |
6.9%
|
|
2009 | 22 |
6.6%
|
|
2010 | 16 |
4.8%
|
|
2011 | 22 |
6.6%
|
|
2012 | 23 |
6.9%
|
|
2013 | 14 |
4.2%
|
|
2014 | 17 |
5.1%
|
|
2015 | 17 |
5.1%
|
|
2016 | 20 |
6%
|
|
2017 | 6 |
1.8%
|
|
2018 | 3 |
0.9%
|