1976

2.0

1968

0.0

1988

5.0

1986

6.3

2012

0.0

1991

5.3

1974

5.4

1982

5.9

1971

7.2

1982

5.1

2003

6.5

1977

4.0

1972

4.8

1978

6.0

1972

7.1

1981

4.0

1975

4.0

1974

5.5

1976

6.5

1976

8.0

2003

7.0