2013

9.0

2007

7.9

2012

7.0

2008

8.9

2002

8.1

1990

8.0

1999

8.6

2002

7.5

2006

7.8

2005

8.3

2014

7.6

2017

8.1

2014

7.6

2010

8.1

2000

8.0

1989

8.3

2016

7.1

2005

8.6

2022

7.3

1993

7.9