Value | Category | Cases | |
---|---|---|---|
99 | Don't Know | 0 |
0%
|
1952 | 1 |
0.2%
|
|
1972 | 1 |
0.2%
|
|
1977 | 1 |
0.2%
|
|
1980 | 6 |
1.2%
|
|
1982 | 2 |
0.4%
|
|
1984 | 2 |
0.4%
|
|
1985 | 1 |
0.2%
|
|
1987 | 4 |
0.8%
|
|
1988 | 2 |
0.4%
|
|
1989 | 5 |
1%
|
|
1992 | 2 |
0.4%
|
|
1993 | 4 |
0.8%
|
|
1994 | 1 |
0.2%
|
|
1995 | 3 |
0.6%
|
|
1996 | 2 |
0.4%
|
|
1997 | 8 |
1.6%
|
|
1998 | 15 |
2.9%
|
|
1999 | 10 |
1.9%
|
|
2000 | 19 |
3.7%
|
|
2001 | 13 |
2.5%
|
|
2002 | 16 |
3.1%
|
|
2003 | 13 |
2.5%
|
|
2004 | 16 |
3.1%
|
|
2005 | 16 |
3.1%
|
|
2006 | 12 |
2.3%
|
|
2007 | 11 |
2.1%
|
|
2008 | 13 |
2.5%
|
|
2009 | 10 |
1.9%
|
|
2010 | 22 |
4.3%
|
|
2011 | 9 |
1.7%
|
|
2012 | 22 |
4.3%
|
|
2013 | 30 |
5.8%
|
|
2014 | 28 |
5.4%
|
|
2015 | 38 |
7.4%
|
|
2016 | 39 |
7.6%
|
|
2017 | 39 |
7.6%
|
|
2018 | 35 |
6.8%
|
|
2019 | 45 |
8.7%
|
|
Sysmiss | 5835 |