2015

6.4

2000

4.0

2009

7.7

2013

8.1

2007

5.3

2006

6.0

1992

7.0

1996

7.2

2011

8.1

2006

7.0

2018

7.0

2007

7.1

2018

5.2

2014

6.7

2004

7.4

2003

6.4

2010

6.3

2003

6.5

2024

6.8

2015

6.4

2007

7.0