2011

4.5

2010

7.0

2008

5.2

2016

6.9

2003

8.8

2022

7.8

2012

6.0

2003

5.7

2016

5.8

2000

6.3

1995

5.9

2012

6.1

2003

5.9

1988

6.5

2006

5.5

2014

6.0

1966

6.4

1999

5.6

2000

5.0

1992

6.2