| Value | Category | Cases | |
|---|---|---|---|
| 1921 | 1 |
0.5%
|
|
| 1925 | 1 |
0.5%
|
|
| 1969 | 1 |
0.5%
|
|
| 1977 | 1 |
0.5%
|
|
| 1982 | 3 |
1.5%
|
|
| 1984 | 1 |
0.5%
|
|
| 1985 | 1 |
0.5%
|
|
| 1986 | 1 |
0.5%
|
|
| 1987 | 4 |
2%
|
|
| 1989 | 1 |
0.5%
|
|
| 1990 | 2 |
1%
|
|
| 1991 | 1 |
0.5%
|
|
| 1992 | 4 |
2%
|
|
| 1993 | 3 |
1.5%
|
|
| 1994 | 4 |
2%
|
|
| 1995 | 5 |
2.5%
|
|
| 1996 | 6 |
3%
|
|
| 1997 | 11 |
5.6%
|
|
| 1998 | 7 |
3.5%
|
|
| 1999 | 10 |
5.1%
|
|
| 2000 | 21 |
10.6%
|
|
| 2001 | 7 |
3.5%
|
|
| 2002 | 12 |
6.1%
|
|
| 2003 | 11 |
5.6%
|
|
| 2004 | 21 |
10.6%
|
|
| 2005 | 13 |
6.6%
|
|
| 2006 | 7 |
3.5%
|
|
| 2007 | 16 |
8.1%
|
|
| 2008 | 21 |
10.6%
|
|
| 2009 | 1 |
0.5%
|
|
| 2147483622 | Not applicable | 0 |
0%
|
| 2147483623 | Refusal | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 10001 | .D | 51126 | |
| Sysmiss | 5428 |