Year	Number
1996	-0.0315036252140999
1998	0.0383083745837212
2000	0.130426153540611
2002	0.0694017261266708
2003	0.136125683784485
2004	0.223591417074203
2005	0.332806766033173
2006	0.212459489703178
2007	0.367832779884338
2008	0.421698182821274
2009	0.219097927212715
2010	0.161859259009361
2011	0.205665543675423
2012	0.260953724384308
2013	0.317648261785507
2014	0.417663902044296
2015	0.534968972206116
2016	0.509927451610565
2017	0.630079209804535
2018	0.548555254936218
2019	0.584862649440765
2020	0.579251527786255
2021	0.604691028594971
2022	0.672034561634064