2014

8.5

2018

6.0

1977

6.5

1992

5.7

2003

6.3

2018

6.3

1963

7.1

2017

7.9

2010

6.8

2017

7.4

1961

7.7

1971

6.4

1990

5.5

1990

6.1

2006

6.6

1970

7.3

2001

9.9

1961

8.0

2011

7.0