2015

9.0

1986

6.8

2008

7.5

2001

6.0

2003

7.0

1995

6.7

2006

6.0

2010

7.2

2000

5.2

2002

6.1

1966

6.1

2006

6.9

2009

5.9

7.8

1995

6.4

2011

5.7

2007

6.1

2011

6.9

2010

6.1

2007

8.1