Value | Category | Cases | |
---|---|---|---|
-9 | Don't know | 2 |
2.9%
|
1960 | 1 |
1.5%
|
|
1970 | 2 |
2.9%
|
|
1972 | 1 |
1.5%
|
|
1974 | 1 |
1.5%
|
|
1978 | 1 |
1.5%
|
|
1979 | 5 |
7.4%
|
|
1980 | 2 |
2.9%
|
|
1984 | 1 |
1.5%
|
|
1985 | 2 |
2.9%
|
|
1986 | 1 |
1.5%
|
|
1987 | 1 |
1.5%
|
|
1989 | 2 |
2.9%
|
|
1990 | 1 |
1.5%
|
|
1991 | 4 |
5.9%
|
|
1993 | 5 |
7.4%
|
|
1994 | 3 |
4.4%
|
|
1995 | 4 |
5.9%
|
|
1996 | 2 |
2.9%
|
|
1997 | 1 |
1.5%
|
|
1998 | 4 |
5.9%
|
|
1999 | 1 |
1.5%
|
|
2000 | 4 |
5.9%
|
|
2001 | 1 |
1.5%
|
|
2002 | 1 |
1.5%
|
|
2003 | 1 |
1.5%
|
|
2004 | 4 |
5.9%
|
|
2005 | 5 |
7.4%
|
|
2006 | 1 |
1.5%
|
|
2007 | 2 |
2.9%
|
|
2008 | 2 |
2.9%
|