2004

6.3

1981

5.8

1931

6.8

1935

5.0

1964

6.1

1984

5.2

1981

6.4

1996

6.9

1930

7.2

2020

6.2

1948

7.7

2018

7.4

1999

6.6

2005

4.7

1980

9.0

1981

7.3

2005

6.5

2004

6.6

2007

6.0

2005

6.7