2010

7.0

2012

6.0

2021

5.8

2002

5.7

2005

7.5

1985

4.1

2001

6.7

2011

8.3

1987

7.8

2006

7.7

1996

6.9

2009

4.5

2014

7.3

2002

0.0

2005

5.7