Year	Number
1996	-1.34093046188354
1998	-1.35454261302948
2000	-1.36436021327972
2002	-0.94576495885849
2003	-0.860016047954559
2004	-0.680962741374969
2005	-1.00175786018372
2006	-0.685272574424744
2007	-0.6916583776474
2008	-0.532337665557861
2009	-0.335741609334946
2010	-0.239782363176346
2011	-0.181345909833908
2012	-0.126087740063667
2013	-0.0301568936556578
2014	0.185563325881958
2015	0.147564426064491
2016	0.0116269327700138
2017	0.084383450448513
2018	0.0339737758040428
2019	-0.0101915299892426
2020	-0.000359974801540375
2021	0.0610510520637035
2022	0.16292978823185