2019

0.0

2012

0.0

2011

0.0

2013

0.0

2015

0.0

2018

0.0

2008

6.9

2009

1.5

2016

0.0

2011

0.0

1968

6.7

1998

7.0

2004

8.0

2006

7.9

2004

8.0

2005

7.3

2002

7.1

1991

6.6

1999

6.8

1993

7.1