Year	Subscribers
2003	998
2004	1997
2005	2996
2006	30500
2007	270370
2008	337300
2009	577344
2010	869600
2011	1193400
2012	1637300
2013	1958823
2014	2148000
2015	2301000
2016	2349900
2017	2573500