2005

6.2

2010

6.7

1981

6.3

1996

7.9

1928

7.3

1968

6.7

2005

5.8

2008

4.5

1937

7.1

2011

6.5

2023

6.1

1942

6.9

2004

5.9

1951

7.5

1980

5.7

1963

6.1

1971

6.9

1945

7.4

1990

6.1