2014

5.6

2015

7.4

7.8

1962

7.7

1935

7.4

1968

7.6

2010

6.2

1965

7.2

1961

7.9

2023

6.5

1968

6.9

1978

8.0

2014

6.8

1957

7.0

1983

7.0

2021

7.7

1931

7.2

1974

6.0

1989

7.9