1968 |
|
0 / 2 |
|
|
1969 |
|
0 / 10 |
|
Difficulty 2
|
1970 |
|
0 / 8 |
|
Difficulty 3
|
1971 |
|
0 / 8 |
|
Difficulty 2
|
1972 |
|
0 / 10 |
|
Difficulty 1
|
1973 |
|
0 / 10 |
|
|
1974 |
|
0 / 8 |
|
Difficulty 1
|
1975 |
|
0 / 10 |
|
Difficulty 3
|
1976 |
|
0 / 10 |
|
Difficulty 5
|
1977 |
|
0 / 10 |
|
Difficulty 1
|
1978 |
|
0 / 10 |
|
Difficulty 1
|
1979 |
|
0 / 10 |
|
Difficulty 1
|
|
1980 |
|
0 / 10 |
|
Difficulty 1
|
1981 |
|
0 / 10 |
|
Difficulty 2
|
1982 |
|
0 / 30 |
|
Difficulty 4
|
1983 |
|
0 / 10 |
|
Difficulty 3
|
1984 |
|
0 / 10 |
|
Difficulty 1
|
1985 |
|
1 / 10 |
|
Difficulty 5
|
1986 |
|
0 / 10 |
|
Difficulty 1
|
1987 |
|
0 / 10 |
|
Difficulty 1
|
1988 |
|
0 / 10 |
|
Difficulty 1
|
1989 |
|
0 / 10 |
|
Difficulty 4
|
1992 |
|
0 / 8 |
|
Difficulty 1
|
1994 |
|
0 / 10 |
|
|
1995 |
|
0 / 10 |
|
|