| Valor | Categoría | Casos | |
|---|---|---|---|
| 1967 | 1 |
0.1%
|
|
| 1972 | 3 |
0.2%
|
|
| 1973 | 4 |
0.2%
|
|
| 1974 | 2 |
0.1%
|
|
| 1975 | 15 |
0.8%
|
|
| 1976 | 9 |
0.5%
|
|
| 1977 | 18 |
1%
|
|
| 1978 | 31 |
1.7%
|
|
| 1979 | 26 |
1.5%
|
|
| 1980 | 43 |
2.4%
|
|
| 1981 | 46 |
2.6%
|
|
| 1982 | 51 |
2.9%
|
|
| 1983 | 56 |
3.1%
|
|
| 1984 | 60 |
3.4%
|
|
| 1985 | 39 |
2.2%
|
|
| 1986 | 50 |
2.8%
|
|
| 1987 | 51 |
2.9%
|
|
| 1988 | 69 |
3.9%
|
|
| 1989 | 62 |
3.5%
|
|
| 1990 | 80 |
4.5%
|
|
| 1991 | 84 |
4.7%
|
|
| 1992 | 85 |
4.8%
|
|
| 1993 | 85 |
4.8%
|
|
| 1994 | 85 |
4.8%
|
|
| 1995 | 83 |
4.6%
|
|
| 1996 | 106 |
5.9%
|
|
| 1997 | 86 |
4.8%
|
|
| 1998 | 83 |
4.6%
|
|
| 1999 | 116 |
6.5%
|
|
| 2000 | 84 |
4.7%
|
|
| 2001 | 75 |
4.2%
|
|
| 2002 | 58 |
3.2%
|
|
| 2003 | 28 |
1.6%
|
|
| 2004 | 9 |
0.5%
|
|
| 2005 | 4 |
0.2%
|
|
| 2006 | 2 |
0.1%
|
|
| 9999 | Sin información | 25 |