2014

7.7

2021

5.4

1980

6.1

1970

7.7

2021

8.7

2007

8.6

2013

7.0

1962

7.4

2004

8.3

1976

7.9

2016

9.0

1985

7.5

2012

8.0

1997

6.6

2016

7.6

1998

7.9

2011

6.9

1991

7.6

2004

7.5

1965

7.6