Year	Subscribers
2001	5500
2002	56735
2003	57992
2004	115069
2005	196650
2006	279814
2007	344677
2008	425294
2009	449030
2010	470527
2011	494372
2012	509336
2013	524621
2014	555815
2015	564046
2016	589310
2017	601821