2008

6.8

2006

7.7

1989

4.5

1959

6.9

1940

7.1

1985

6.4

1976

7.3

2004

6.1

2024

7.2

1950

7.0

2008

7.6

2002

6.1

1986

6.8

2007

6.5

1977

6.2

2007

6.9

2008

6.9

1992

6.4

2005

6.8

2006

6.9