2015

10.0

2009

6.6

2019

5.2

1968

6.9

2009

6.8

2002

4.6

2010

5.3

1961

6.9

2007

7.6

1953

7.3

2003

6.6

2011

7.1

2014

7.8

1969

5.1

2017

6.0

2013

6.1

2012

5.7

2010

6.4

1980

7.1

2001

6.9