Value | Category | Cases | |
---|---|---|---|
0 | IF NEVER, | 3984 |
77.7%
|
98 | IF DON'T KNOW, | 78 |
1.5%
|
1970 | 2 |
0%
|
|
1974 | 1 |
0%
|
|
1988 | 2 |
0%
|
|
1989 | 2 |
0%
|
|
1990 | 1 |
0%
|
|
1996 | 2 |
0%
|
|
1997 | 1 |
0%
|
|
1998 | 4 |
0.1%
|
|
1999 | 4 |
0.1%
|
|
2000 | 1 |
0%
|
|
2001 | 8 |
0.2%
|
|
2002 | 12 |
0.2%
|
|
2003 | 18 |
0.4%
|
|
2004 | 32 |
0.6%
|
|
2005 | 61 |
1.2%
|
|
2006 | 157 |
3.1%
|
|
2007 | 140 |
2.7%
|
|
2008 | 6 |
0.1%
|
|
2009 | 5 |
0.1%
|
|
Sysmiss | 605 |