1992

5.9

2024

7.0

2008

8.9

2006

8.6

2016

8.6

2011

7.6

2009

7.5

2015

8.3

2013

8.2

2003

7.4

2007

8.1

1988

8.0

1989

8.3

1982

7.6

2007

8.5

2005

7.0

2016

7.8

2001

7.8

2013

8.0

2001

7.8