1996

9.0

1957

6.3

2004

6.5

1984

4.3

1985

6.2

1967

6.4

1968

6.1

1981

4.5

1997

7.0

2013

6.2

1992

0.0

2015

10.0

1984

6.3

1990

0.0

1990

0.0

1985

8.0

2025

7.4

1977

6.0

2008

7.3

1965

5.3