2012

9.4

2017

5.5

1984

7.1

1970

6.4

2006

6.9

1985

6.2

2011

7.4

1956

7.1

1987

7.1

2016

7.0

1978

6.9

1983

5.5

2004

6.5

2015

8.0

2006

6.2

2014

9.7

2015

7.0

2009

5.3

1979

7.6

1990

6.4