1926

5.0

1984

7.2

6.1

2008

4.5

2005

5.9

1966

5.7

1992

6.2

2009

6.2

1970

6.4

1983

5.8

1965

6.7

2024

9.6

2021

6.1

2016

6.8

1989

7.3

2007

7.1

1937

6.5

1995

5.2

1957

6.9