1984

6.4

2014

5.7

2001

7.5

1990

6.9

1988

8.1

1976

8.2

2019

8.5

1998

8.1

1940

7.3

2019

8.1

1957

7.9

1986

7.2

1971

6.6

1976

7.4

2010

7.4

1966

7.3

2015

7.6

2018

8.2

1974

7.3

2021

7.4