2005

6.1

1954

6.7

1992

6.8

2004

6.9

1975

5.1

1957

4.5

1953

5.4

2007

6.6

2008

5.6

2003

7.0

1930

4.7

1991

7.1

1999

6.3

2017

6.2

2007

5.1

1968

6.5

2006

6.3

1990

6.7

2000

5.5

2005

7.0