Value | Category | Cases | |
---|---|---|---|
1970 | 6 |
0%
|
|
1971 | 6 |
0%
|
|
1972 | 20 |
0.1%
|
|
1973 | 30 |
0.2%
|
|
1974 | 65 |
0.4%
|
|
1975 | 83 |
0.6%
|
|
1976 | 110 |
0.7%
|
|
1977 | 157 |
1.1%
|
|
1978 | 207 |
1.4%
|
|
1979 | 268 |
1.8%
|
|
1980 | 358 |
2.4%
|
|
1981 | 331 |
2.2%
|
|
1982 | 329 |
2.2%
|
|
1983 | 404 |
2.7%
|
|
1984 | 377 |
2.5%
|
|
1985 | 410 |
2.8%
|
|
1986 | 427 |
2.9%
|
|
1987 | 422 |
2.8%
|
|
1988 | 450 |
3%
|
|
1989 | 485 |
3.3%
|
|
1990 | 530 |
3.6%
|
|
1991 | 473 |
3.2%
|
|
1992 | 518 |
3.5%
|
|
1993 | 531 |
3.6%
|
|
1994 | 567 |
3.8%
|
|
1995 | 551 |
3.7%
|
|
1996 | 570 |
3.8%
|
|
1997 | 542 |
3.6%
|
|
1998 | 617 |
4.1%
|
|
1999 | 596 |
4%
|
|
2000 | 693 |
4.6%
|
|
2001 | 582 |
3.9%
|
|
2002 | 611 |
4.1%
|
|
2003 | 649 |
4.4%
|
|
2004 | 605 |
4.1%
|
|
2005 | 601 |
4%
|
|
2006 | 551 |
3.7%
|
|
2007 | 121 |
0.8%
|
|
9997 | Inconsistent | 5 |
0%
|
9998 | Don't know year | 47 |
0.3%
|
9999 | 4 |