2009

8.5

1981

7.8

1965

7.9

1965

6.9

1985

6.6

2004

7.1

1959

8.1

2011

7.5

2002

6.5

2005

7.7

1970

7.6

2003

7.4

1997

7.7

2018

6.7

2005

5.9

2014

7.4

1927

7.2

1974

7.9

1936

7.4