1952

7.9

1994

7.9

2007

6.2

1995

6.9

2001

6.4

1970

7.5

2008

5.8

1982

5.9

1984

8.0

1941

6.5

1991

7.7

2007

6.8

1971

6.2

1993

6.7

1970

6.3

1997

5.5

2005

6.4

2022

5.9

1962

2.5

2017

6.7