2008

6.2

1995

6.2

1992

7.1

1993

6.1

1965

6.7

1953

7.4

2016

7.4

2013

8.1

1996

6.4

2006

5.5

1983

7.8

1966

8.0

1994

6.5

1972

7.8

2006

7.0

1992

7.3

1967

7.6

2018

6.8

2013

7.3

2008

6.6