1982

5.0

2004

5.6

2020

8.2

1984

10.0

1991

5.5

1964

6.2

2017

6.8

1997

6.1

1988

8.0

1978

0.0

2008

6.3

2007

4.8

1978

0.0

1994

0.0

2007

5.0

1968

7.6

1976

6.2

1962

4.8

1973

7.5

2006

6.7