1997

8.0

1986

6.4

1967

5.0

2011

9.8

1949

6.9

8.1

1992

6.7

1971

5.0

1969

6.2

1994

4.9

2017

9.0

1977

6.0

2010

4.6

1991

5.1

1971

7.4

1992

6.0

2012

4.2

2024

9.5

2010

7.0

2021

6.0