| Value | Category | Cases | |
|---|---|---|---|
| 5 | 1 |
0.1%
|
|
| 1972 | 1 |
0.1%
|
|
| 1974 | 1 |
0.1%
|
|
| 1976 | 1 |
0.1%
|
|
| 1978 | 2 |
0.2%
|
|
| 1979 | 2 |
0.2%
|
|
| 1980 | 2 |
0.2%
|
|
| 1983 | 1 |
0.1%
|
|
| 1984 | 3 |
0.4%
|
|
| 1985 | 4 |
0.5%
|
|
| 1986 | 5 |
0.6%
|
|
| 1987 | 3 |
0.4%
|
|
| 1988 | 6 |
0.7%
|
|
| 1989 | 3 |
0.4%
|
|
| 1990 | 20 |
2.4%
|
|
| 1991 | 2 |
0.2%
|
|
| 1992 | 8 |
1%
|
|
| 1993 | 8 |
1%
|
|
| 1994 | 13 |
1.6%
|
|
| 1995 | 16 |
2%
|
|
| 1996 | 13 |
1.6%
|
|
| 1997 | 14 |
1.7%
|
|
| 1998 | 20 |
2.4%
|
|
| 1999 | 16 |
2%
|
|
| 2000 | 45 |
5.5%
|
|
| 2001 | 18 |
2.2%
|
|
| 2002 | 38 |
4.6%
|
|
| 2003 | 31 |
3.8%
|
|
| 2004 | 48 |
5.9%
|
|
| 2005 | 69 |
8.4%
|
|
| 2006 | 71 |
8.7%
|
|
| 2007 | 94 |
11.5%
|
|
| 2008 | 118 |
14.4%
|
|
| 2009 | 99 |
12.1%
|
|
| 2010 | 23 |
2.8%
|
|
| 9997 | 1 |
0.1%
|
|
| Sysmiss | 1 |