2009

7.2

2017

7.2

1972

4.8

1980

7.6

1986

7.0

1985

6.7

2004

6.4

1988

6.6

1942

6.3

1970

6.8

1977

6.6

1943

6.9

1959

6.7

2011

7.1

1992

7.0

2001

5.6

1909

0.5

2002

6.0

1945

6.8

1944

7.0