1988 8.1

1988 7.3

1988 7.2

1988 6.8

1987 7.6

1987 6.0

1987 5.1

1987 6.9

1987 6.1

1987 6.1

1987 5.2

1987 7.3

1987 6.6

1987 6.3

1987 6.1

1987 5.4

1987 5.0

1987 6.7

1987 6.6

1987 7.9