Year	Number
1996	0.809140563011169
1998	0.876508176326752
2000	0.839712262153625
2002	0.83394581079483
2003	0.833284139633179
2004	1.01255440711975
2005	1.13356924057007
2006	1.18363726139069
2007	1.15891671180725
2008	0.506980240345001
2009	0.328725516796112
2010	0.142505496740341
2011	-0.04986921697855
2012	0.0326781161129475
2013	0.12053008377552
2014	-0.244236752390862
2015	-0.283465951681137
2016	-0.00406748708337545
2017	0.0554009824991226
2018	0.0350411422550678
2019	0.0816363021731377
2020	0.188530936837196
2021	0.519451081752777
2022	0.686108767986298