Year	Subscribers
2001	4000
2002	19302
2003	110402
2004	252500
2005	483100
2006	751000
2007	1035200
2008	1329300
2009	1553600
2010	2097800
2011	2506700
2012	2920900
2013	2938800
2014	3061000
2015	3063800
2016	2718800
2017	2687800