1955

5.0

1990

6.0

1983

3.8

2000

6.3

2004

7.1

2006

6.8

1995

4.8

2017

7.1

1931

6.8

1935

4.5

1964

6.3

2022

6.5

1958

6.1

2007

6.3

2004

7.7

1938

6.0

2001

6.4

2003

7.3

2003

5.0

1979

5.3