2009

5.0

2019

6.9

2010

8.1

1970

7.3

2003

7.1

2016

7.8

2007

7.2

2004

6.5

1978

7.6

1971

6.0

1997

9.3

2014

0.0

2005

10.0

2005

7.6

2003

8.6

2016

7.2

2011

0.0

1987

8.0

1988

7.2

2017

7.8