−10.00
−5.00
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
50.00
2012
40.40
2013
9.80
2014
−9.20
2015
8.30
2016
−6.60
2017
15.80
2018
21.00
2019
−6.20
2020
22.00