| Value | Category | Cases | |
|---|---|---|---|
| -888 | Doesn't Know | 0 |
0%
|
| 1969 | 1 |
0.2%
|
|
| 1977 | 1 |
0.2%
|
|
| 1978 | 1 |
0.2%
|
|
| 1980 | 1 |
0.2%
|
|
| 1982 | 1 |
0.2%
|
|
| 1985 | 1 |
0.2%
|
|
| 1986 | 2 |
0.4%
|
|
| 1988 | 1 |
0.2%
|
|
| 1990 | 2 |
0.4%
|
|
| 1992 | 2 |
0.4%
|
|
| 1993 | 1 |
0.2%
|
|
| 1995 | 3 |
0.7%
|
|
| 1996 | 6 |
1.3%
|
|
| 1997 | 3 |
0.7%
|
|
| 1998 | 7 |
1.5%
|
|
| 1999 | 8 |
1.8%
|
|
| 2000 | 8 |
1.8%
|
|
| 2001 | 9 |
2%
|
|
| 2002 | 12 |
2.6%
|
|
| 2003 | 8 |
1.8%
|
|
| 2004 | 11 |
2.4%
|
|
| 2005 | 19 |
4.2%
|
|
| 2006 | 19 |
4.2%
|
|
| 2007 | 36 |
7.9%
|
|
| 2008 | 43 |
9.4%
|
|
| 2009 | 61 |
13.4%
|
|
| 2010 | 84 |
18.4%
|
|
| 2011 | 87 |
19.1%
|
|
| 2012 | 18 |
3.9%
|
|
| Sysmiss | 1506 |