2008

8.4

2002

6.7

2006

7.7

1987

7.0

1982

7.4

2003

7.2

1980

7.8

2004

6.1

2003

6.9

2014

6.3

1979

7.0

1988

7.0

1988

7.0

2018

6.7

2007

7.0

2010

7.0

2007

7.9

0.0

2001

5.0

2020

8.0