1969

6.6

2007

5.9

1988

5.5

1955

7.2

2001

5.2

1997

6.2

1959

8.2

2000

7.5

1979

8.1

1929

6.6

2010

7.1

1990

5.4

2008

7.0

2022

10.0

1976

5.9

2018

7.0

1937

5.5

2009

6.1

1988

7.5

1969

6.8