2008

7.5

1964

7.3

2003

5.9

2013

7.5

1999

6.3

2010

7.1

2006

6.0

2002

6.0

2010

7.4

2004

7.9

2008

7.1

2013

6.1

2009

5.6

2010

7.2

2011

5.7

2007

6.4

2002

6.1

1973

6.5

1942

7.0

2013

5.9