Year	Number
2006	0.0475496053695679
2007	0.108533091843128
2008	0.767700612545013
2009	0.817372143268585
2010	0.584210991859436
2011	0.565341532230377
2012	0.596563041210175
2013	0.504595458507538
2014	0.219455271959305
2015	0.136638209223747
2016	0.268716216087341
2017	-0.062578022480011
2018	0.0375925563275814
2019	0.0580168217420578
2020	-0.0612264648079872
2021	-0.0525020584464073
2022	-0.0591769814491272