1994 6.3

1994 5.9

1993 7.7

1993 6.5

1993 6.6

1993 7.8

1993 7.5

1993 7.8

1993 6.1

1993 7.9

1993 7.1

1992 5.5

1992 6.6

1992 7.7

1992 8.0

1992 4.9

1991 7.6

1991 8.0

1991 6.5

1990 6.8