2007

10.0

2010

7.9

2005

6.1

1977

7.3

2012

6.8

2016

6.7

6.3

1895

5.6

1980

5.9

2003

5.8

2015

6.7

1982

7.5

2011

5.5

2008

7.8

2000

10.0

2014

7.6

2003

4.9

2004

6.0

2018

4.0

2017

6.0