EFR 1981 | 33:38 |
EFR 1982 | 32:27 |
EFR 1983 | 31:26 |
EFR 1984 | 32:34 |
EFR 1985 | 34:08 |
EFR 1986 | 32:15 |
EFR 1987 | 32:02 |
EFR 1988 | 33:18 |
EFR 1989 | 30:55 |
EFR 1990 | 30:59 |
EFR 1991 | 32:09 |
EFR 1992 | 32:31 |
EFR 1993 | 33:39 |
EFR 1994 | 35:56 |
EFR 1995 | 33:00 |
EFR 1996 | 37:13 |
EFR 1998 | 36:43 |
EFR 1999 | 36:10 |
EFR 2000 | 38:41 |