Created with Raphaël 2.1.2
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
8
X
−2
−1
1
2
3
4
5
6
7
8
1.9
−0.1
3.5
1.9
5.2
2.5
2.9
3.7
3.9
4.9
4.5
5.6
3.7
2.3
8.4
6.5
2.7
5.1
1
4.6
−0.5
1.3
6.2
0.8
−0.9
1.1
−0.4
−1.8
−0.4
−0.3
−2.6
