1999 6.7

1997 6.7

1997 6.7

2003 6.7

1986 6.7

1968 6.7

1991 6.7

2004 6.7

1989 6.7

1999 6.7

1980 6.7

1987 6.7

2002 6.7

2003 6.7

1997 6.7

2000 6.7

2000 6.7

1998 6.7

1985 6.7

1987 6.7