2000 subs (8/25/11)
3000 subs (4/5/12)
4000 subs (7/28/12)
5000 subs (10/4/12)
6000 subs (1/2/13)
7000 subs (3/17/13)
8000 subs (5/24/13)
9000 subs (7/12/13)
10000 subs (8/25/13)
12000 subs (1/1/14)
13000 subs (3/7/14)
14000 subs (5/8/14)
15000 subs (7/3/14)
16000 subs (8/20/14)
17000 subs (10/??/14)
18000 subs (12/24/14)
19000 subs (4/10/15)
20000 subs! (8/11/15)