2010

8.0

2011

8.5

1994

8.4

2008

8.9

2003

7.9

2014

7.8

2019

8.7

2018

8.0

2009

6.8

2015

8.1

2012

6.8

2010

8.1

2010

8.0

1999

7.4

1999

7.9

1988

8.1

2007

8.5

2010

8.5

2002

7.5

1989

8.0