2006

7.4

2000

7.0

1981

6.4

2005

7.2

1997

6.3

2005

6.5

2007

6.7

1998

7.2

1985

5.4

1938

4.5

1940

0.0

2001

7.0

2016

6.3

1941

4.0

2006

6.2

1993

6.4

2009

6.6

1999

6.1

1943

4.3

1948

3.3