2010

7.1

2001

6.0

1996

7.1

1966

7.1

2012

6.2

2003

7.3

1977

6.6

1948

7.4

1998

6.2

1995

6.5

1994

6.8

2017

7.7

1971

6.9

1955

7.2

1967

7.4

1967

6.9

2014

6.6

1997

6.8