Value | Category | Cases | |
---|---|---|---|
1978 | 2 |
0%
|
|
1979 | 2 |
0%
|
|
1980 | 5 |
0%
|
|
1981 | 4 |
0%
|
|
1982 | 15 |
0.1%
|
|
1983 | 8 |
0%
|
|
1984 | 15 |
0.1%
|
|
1985 | 21 |
0.1%
|
|
1986 | 16 |
0.1%
|
|
1987 | 15 |
0.1%
|
|
1988 | 23 |
0.1%
|
|
1989 | 31 |
0.2%
|
|
1990 | 38 |
0.2%
|
|
1991 | 47 |
0.3%
|
|
1992 | 61 |
0.3%
|
|
1993 | 55 |
0.3%
|
|
1994 | 71 |
0.4%
|
|
1995 | 87 |
0.5%
|
|
1996 | 81 |
0.4%
|
|
1997 | 85 |
0.5%
|
|
1998 | 99 |
0.5%
|
|
1999 | 108 |
0.6%
|
|
2000 | 155 |
0.8%
|
|
2001 | 115 |
0.6%
|
|
2002 | 153 |
0.8%
|
|
2003 | 190 |
1%
|
|
2004 | 228 |
1.2%
|
|
2005 | 189 |
1%
|
|
2006 | 241 |
1.3%
|
|
2007 | 286 |
1.5%
|
|
2008 | 402 |
2.1%
|
|
2009 | 459 |
2.4%
|
|
2010 | 453 |
2.4%
|
|
2011 | 2 |
0%
|
|
9997 | inconsistent | 0 |
0%
|
9998 | dk | 1 |
0%
|
10001 | .Z | 14991 |