| Value | Category | Cases | |
|---|---|---|---|
| 1954 | 1 |
0.8%
|
|
| 1957 | 2 |
1.7%
|
|
| 1959 | 1 |
0.8%
|
|
| 1960 | 1 |
0.8%
|
|
| 1961 | 2 |
1.7%
|
|
| 1965 | 1 |
0.8%
|
|
| 1967 | 1 |
0.8%
|
|
| 1968 | 1 |
0.8%
|
|
| 1969 | 2 |
1.7%
|
|
| 1970 | 4 |
3.4%
|
|
| 1973 | 2 |
1.7%
|
|
| 1974 | 2 |
1.7%
|
|
| 1975 | 4 |
3.4%
|
|
| 1976 | 1 |
0.8%
|
|
| 1977 | 1 |
0.8%
|
|
| 1978 | 5 |
4.2%
|
|
| 1979 | 2 |
1.7%
|
|
| 1980 | 6 |
5.1%
|
|
| 1982 | 4 |
3.4%
|
|
| 1983 | 3 |
2.5%
|
|
| 1984 | 2 |
1.7%
|
|
| 1985 | 8 |
6.8%
|
|
| 1986 | 6 |
5.1%
|
|
| 1987 | 2 |
1.7%
|
|
| 1988 | 4 |
3.4%
|
|
| 1989 | 3 |
2.5%
|
|
| 1990 | 2 |
1.7%
|
|
| 1991 | 1 |
0.8%
|
|
| 1994 | 1 |
0.8%
|
|
| 1995 | 2 |
1.7%
|
|
| 1997 | 5 |
4.2%
|
|
| 1998 | 6 |
5.1%
|
|
| 1999 | 5 |
4.2%
|
|
| 2000 | 11 |
9.3%
|
|
| 2001 | 13 |
11%
|
|
| 7777 | NZ | 0 |
0%
|
| 8888 | BO | 1 |
0.8%
|
| Sysmiss | 2885 |