| Similarity | Rank | |
|---|---|---|
| 1991 | 0.988 | 5992 |
| 1988 | 0.988 | 7071 |
| 1987 | 0.986 | 7465 |
| 1986 | 0.985 | 7315 |
| 1983 | 0.984 | 8305 |
| 1982 | 0.984 | 8369 |
| 1981 | 0.982 | 8919 |
| 1985 | 0.982 | 7578 |
| 1993 | 0.979 | 5505 |
| 1992 | 0.979 | 5489 |
| 1979 | 0.975 | 8473 |
| 1994 | 0.975 | 4973 |
| 1984 | 0.975 | 7577 |
| 1978 | 0.973 | 9014 |
| 1980 | 0.972 | 7432 |
| 1995 | 0.972 | 4621 |
| 1990 | 0.971 | 5524 |
| 1977 | 0.968 | 9638 |
| 1975 | 0.967 | 9230 |
| 1976 | 0.966 | 9233 |
| 1996 | 0.965 | 4296 |
| 1997 | 0.964 | 4165 |
| 1974 | 0.957 | 9565 |
| 1998 | 0.957 | 3724 |
| 1999 | 0.954 | 3420 |