Value | Category | Cases | |
---|---|---|---|
-9 | Don't know | 1 |
0.8%
|
1928 | 1 |
0.8%
|
|
1942 | 1 |
0.8%
|
|
1960 | 1 |
0.8%
|
|
1964 | 1 |
0.8%
|
|
1967 | 1 |
0.8%
|
|
1968 | 1 |
0.8%
|
|
1970 | 1 |
0.8%
|
|
1972 | 1 |
0.8%
|
|
1973 | 2 |
1.6%
|
|
1974 | 1 |
0.8%
|
|
1976 | 2 |
1.6%
|
|
1978 | 3 |
2.3%
|
|
1979 | 5 |
3.9%
|
|
1980 | 1 |
0.8%
|
|
1982 | 1 |
0.8%
|
|
1983 | 3 |
2.3%
|
|
1984 | 4 |
3.1%
|
|
1986 | 1 |
0.8%
|
|
1987 | 3 |
2.3%
|
|
1988 | 2 |
1.6%
|
|
1989 | 5 |
3.9%
|
|
1990 | 9 |
7%
|
|
1991 | 4 |
3.1%
|
|
1992 | 2 |
1.6%
|
|
1993 | 1 |
0.8%
|
|
1994 | 2 |
1.6%
|
|
1995 | 2 |
1.6%
|
|
1996 | 2 |
1.6%
|
|
1997 | 3 |
2.3%
|
|
1998 | 5 |
3.9%
|
|
1999 | 1 |
0.8%
|
|
2000 | 4 |
3.1%
|
|
2001 | 4 |
3.1%
|
|
2002 | 3 |
2.3%
|
|
2003 | 8 |
6.3%
|
|
2004 | 6 |
4.7%
|
|
2005 | 5 |
3.9%
|
|
2006 | 10 |
7.8%
|
|
2007 | 6 |
4.7%
|
|
2008 | 7 |
5.5%
|
|
2009 | 2 |
1.6%
|