2011

8.0

2019

9.0

2004

6.8

2000

7.2

2003

7.3

1989

6.2

2008

6.7

2009

6.7

2010

5.1

1943

6.9

1974

6.5

1982

7.3

1956

7.1

2003

5.0

1940

7.1

1973

7.0

1995

6.3

1991

5.9

1990

6.3

2001

6.0