Year	Number
1996	-0.0423130206763744
1998	0.0627863109111786
2000	0.258450001478195
2002	0.346043467521667
2003	0.346937119960785
2004	0.319827616214752
2005	0.198065519332886
2006	0.150474414229393
2007	0.121899016201496
2008	0.134927570819855
2009	0.200032845139503
2010	0.178501576185226
2011	0.12169187515974
2012	0.112745344638824
2013	0.108392298221588
2014	0.000331484014168382
2015	-0.0753471404314041
2016	-0.067501425743103
2017	-0.0878469422459602
2018	-0.00858165230602026
2019	0.0088830990716815
2020	-0.026169067248702
2021	-0.0762767419219017
2022	-0.121708184480667