| Value | Category | Cases | |
|---|---|---|---|
| 1970 | 2 |
0%
|
|
| 1972 | 1 |
0%
|
|
| 1973 | 1 |
0%
|
|
| 1974 | 3 |
0%
|
|
| 1975 | 16 |
0%
|
|
| 1976 | 16 |
0%
|
|
| 1977 | 35 |
0.1%
|
|
| 1978 | 38 |
0.1%
|
|
| 1979 | 89 |
0.2%
|
|
| 1980 | 138 |
0.3%
|
|
| 1981 | 121 |
0.3%
|
|
| 1982 | 240 |
0.5%
|
|
| 1983 | 218 |
0.5%
|
|
| 1984 | 330 |
0.7%
|
|
| 1985 | 440 |
0.9%
|
|
| 1986 | 465 |
1%
|
|
| 1987 | 544 |
1.2%
|
|
| 1988 | 650 |
1.4%
|
|
| 1989 | 677 |
1.4%
|
|
| 1990 | 1001 |
2.1%
|
|
| 1991 | 880 |
1.9%
|
|
| 1992 | 1149 |
2.4%
|
|
| 1993 | 1081 |
2.3%
|
|
| 1994 | 1237 |
2.6%
|
|
| 1995 | 1434 |
3%
|
|
| 1996 | 1739 |
3.7%
|
|
| 1997 | 1817 |
3.9%
|
|
| 1998 | 1997 |
4.2%
|
|
| 1999 | 1769 |
3.8%
|
|
| 2000 | 2381 |
5.1%
|
|
| 2001 | 1971 |
4.2%
|
|
| 2002 | 2508 |
5.3%
|
|
| 2003 | 2587 |
5.5%
|
|
| 2004 | 2744 |
5.8%
|
|
| 2005 | 2794 |
5.9%
|
|
| 2006 | 2671 |
5.7%
|
|
| 2007 | 3117 |
6.6%
|
|
| 2008 | 3022 |
6.4%
|
|
| 2009 | 3223 |
6.8%
|
|
| 2010 | 669 |
1.4%
|
|
| 9999 | Missing | 1277 |
2.7%
|