1983 6.7

1983 3.5

1983 7.2

1983 7.1

1983 7.0

1983 6.8

1982 7.0

1982 7.1

1982 6.3

1982 6.5

1982 6.9

1982 6.8

1982 6.0

1981 5.3

1981 7.6

1981 6.8

1981 7.4

1981 7.3

1981 7.4

1981 6.4