Year	Subscribers
2001	327
2002	592
2003	3417
2004	20450
2005	21000
2006	22895
2007	63263
2008	101922
2009	169600
2010	228316
2011	359000
2012	354000
2013	424357
2014	567601
2015	625917
2016	892184
2017	1220504