1952

8.1

1930

6.1

1944

7.0

2000

6.2

2012

6.4

1968

5.8

2012

5.4

2003

5.5

1964

6.3

1951

6.0

1945

5.7

1941

5.9

2007

5.9

2005

6.7

1986

6.9

2004

6.5

1955

6.0

1988

6.7

2004

6.5

1968

7.1