| Value | Category | Cases | |
|---|---|---|---|
| 1977 | 3 |
0%
|
|
| 1979 | 13 |
0.1%
|
|
| 1980 | 25 |
0.2%
|
|
| 1981 | 16 |
0.1%
|
|
| 1982 | 15 |
0.1%
|
|
| 1983 | 44 |
0.3%
|
|
| 1984 | 87 |
0.6%
|
|
| 1985 | 108 |
0.7%
|
|
| 1986 | 103 |
0.7%
|
|
| 1987 | 113 |
0.7%
|
|
| 1988 | 173 |
1.1%
|
|
| 1989 | 213 |
1.4%
|
|
| 1990 | 195 |
1.3%
|
|
| 1991 | 296 |
1.9%
|
|
| 1992 | 287 |
1.9%
|
|
| 1993 | 459 |
3%
|
|
| 1994 | 387 |
2.5%
|
|
| 1995 | 393 |
2.5%
|
|
| 1996 | 353 |
2.3%
|
|
| 1997 | 510 |
3.3%
|
|
| 1998 | 548 |
3.6%
|
|
| 1999 | 544 |
3.5%
|
|
| 2000 | 656 |
4.3%
|
|
| 2001 | 537 |
3.5%
|
|
| 2002 | 564 |
3.7%
|
|
| 2003 | 695 |
4.5%
|
|
| 2004 | 659 |
4.3%
|
|
| 2005 | 789 |
5.1%
|
|
| 2006 | 633 |
4.1%
|
|
| 2007 | 733 |
4.8%
|
|
| 2008 | 789 |
5.1%
|
|
| 2009 | 760 |
4.9%
|
|
| 2010 | 767 |
5%
|
|
| 2011 | 678 |
4.4%
|
|
| 2012 | 638 |
4.1%
|
|
| 2013 | 649 |
4.2%
|
|
| 2014 | 611 |
4%
|
|
| 2015 | 364 |
2.4%
|
|
| 2016 | 12 |
0.1%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 47174 |