2004

6.0

2003

5.9

2003

5.7

1980

5.9

2008

7.5

2021

9.3

2019

10.0

2007

5.7

2011

7.0

1998

6.5

2011

7.5

2013

6.3

2002

6.4

2004

7.5

2013

6.1

2006

6.7

2012

6.5

1972

5.2

2010

6.9