Year	Number
1996	-0.0499914959073067
1998	0.111920341849327
2000	-0.125803381204605
2002	0.188492238521576
2003	0.246098503470421
2004	0.00325646600686014
2005	0.125595733523369
2006	0.520101010799408
2007	0.35761559009552
2008	0.383096486330032
2009	0.625379621982574
2010	0.394421875476837
2011	0.332048267126083
2012	0.39049369096756
2013	-0.226966470479965
2014	-0.336002737283707
2015	-0.516435563564301
2016	-1.09681463241577
2017	-0.917248427867889
2018	-0.833329558372498
2019	-0.766716241836548
2020	-1.28161418437958
2021	-1.25935423374176
2022	-1.28796994686127