0.0

2004

8.0

2006

6.9

1985

7.1

1990

5.8

1980

7.9

2018

6.0

1976

7.8

1979

7.3

1982

6.9

2022

6.8

1931

8.3

2005

7.6

1993

6.5

1942

7.2

1939

6.5

1957

5.8

1992

7.5

2019

3.9

1999

7.4