Year	Number
2003	0.629589557647705
2004	0.817679941654205
2005	0.677347898483276
2006	0.46780064702034
2007	0.280977129936218
2008	0.281706720590591
2009	0.215018734335899
2010	0.689703106880188
2011	0.937798142433167
2012	0.894514441490173
2013	0.935446381568909
2014	0.847196459770203
2015	0.868294656276703
2016	0.897029459476471
2017	0.771566808223724
2018	0.833516359329224
2019	1.03778612613678
2020	1.0890086889267
2021	1.0789657831192
2022	1.11424672603607