Year	Number
1996	0
1998	0
2000	0.995024859905243
2002	4.47761201858521
2003	6.96517419815063
2004	10.0961542129517
2005	11.0047845840454
2006	19.6172256469727
2007	22.0095691680908
2008	25.480770111084
2009	27.488151550293
2010	34.1232223510742
2011	35.6807518005371
2012	40.3755874633789
2013	42.7230033874512
2014	49.519229888916
2015	48.5714302062988
2016	48.0952377319336
2017	49.523811340332
2018	50.476188659668
2019	47.6190490722656
2020	48.0952377319336
2021	52.3809509277344
2022	49.5283012390137