2017

6.0

2014

6.5

2004

5.8

2016

8.9

2000

9.4

1997

7.8

2000

7.2

2018

6.9

2011

6.0

2018

6.0

2017

5.7

2010

6.0

1965

6.4

2005

8.5

1932

6.2

2008

6.3

2013

7.7

2015

7.8

1969

8.3