2002

7.8

2006

7.0

2012

5.8

1941

7.0

2017

6.8

2011

7.1

2009

6.2

2014

7.5

1998

6.0

2016

7.5

2005

6.4

2004

7.2

1996

6.7

2013

7.8

2003

6.2

2017

8.0

2004

6.5

1991

8.1

2014

8.0

2009

4.8