2011

6.0

2008

5.9

2019

8.1

1998

6.1

1988

7.6

1992

7.3

2015

6.9

2017

7.4

1962

7.8

2013

7.7

1988

5.2

2018

6.4

1980

6.7

2011

7.8

2013

5.7

1970

7.1

2017

7.6

2017

6.3

1996

7.2

2002

7.1