1966

6.2

1997

6.5

2017

5.9

2022

4.6

1977

8.8

1988

6.9

2018

6.0

1986

7.2

1985

7.8

1982

7.4

1988

8.3

1984

7.5

1958

5.0

1991

5.0

1974

0.0

2008

7.0

1968

10.0

1984

2.0

1982

6.0

1971

0.0