2015

6.9

1986

7.5

1986

10.0

2008

5.2

1996

6.2

1985

6.3

2011

6.3

2011

6.7

2013

3.2

1989

2.0

1980

5.7

1974

0.0

1993

6.0

2015

10.0

1976

2.0

2010

6.2

1998

6.2

2011

6.5

2014

6.6

2004

8.0