2009

8.1

1983

6.6

2006

6.5

1954

6.1

2005

6.8

1976

7.7

1934

5.5

2017

8.3

2002

6.2

1939

7.1

2005

7.5

1992

6.9

2006

6.5

2007

6.7

1992

6.8

1992

7.1

2007

7.9

1987

6.9

2006

7.2

2001

6.8