2011

8.5

2003

8.7

2009

8.5

1954

7.0

2014

7.1

2013

6.8

2015

5.9

1918

5.0

1998

6.2

1973

6.6

2010

6.6

2009

5.8

2021

10.0

2013

5.5

1979

5.7

2016

7.1

2010

5.2

2018

7.3