2019
−3.48
2018
3.85
2017
−0.89
2016
−5.05
2015
−0.2
2014
1.19
2013
−5.64
2012
−1.7
2011
−2
2010
−2.86
2009
2.03
2008
−1.21
2007
1.7
2006
8.61
2005
2.85
2004
13.63
2003
−1.35
2002
5.79
2001
−0.89
2000
5.89
1999
−1.7