Using data

Outlet: self-pressed CD album, requires 126 sales per month
Outlet: CD Baby (CD), requires 210 sales per month
Outlet: retail album CD (high end royalty deal), requires 1,261 sales per month
Outlet: retail album CD (low end royalty deal), requires 4,204 sales per month
Outlet: Amazon, requires 12,640 sales per month
Outlet: Google Play single track, requires 11,398 sales per month
Outlet: Xbox Music via Tunecore, requires 11,489 sales per month
Outlet: iTunes (single), requires 11,364 sales per month
Outlet: iTunes via CD Baby, requires 1,286 sales per month
Outlet: iTunes via TuneCore, requires 1,833 sales per month
Outlet: iTunes via ReverbNation (single), requires 1,850 sales per month
Outlet: iTunes (album), requires 1,126 sales per month
Outlet: iTunes via ReverbNation (album), requires 185 sales per month
Outlet: CD Baby (download), requires 126 sales per month
Outlet: TuneCore, requires 131 sales per month
Outlet: Bandcamp, requires 220 sales per month
Outlet: iTunes Radio via SoundExchange, requires 18,947 sales per month
Outlet: Pandora via SoundExchange, requires 23,095 sales per month
Outlet: Sirius XM, requires 4,373 sales per month
Outlet: Last fm, requires 15,750,000 sales per month
Outlet: CD Baby, requires 138,462 sales per month
Outlet: Rhapsody (independent), requires 138,462 sales per month
Outlet: Rhapsody (label), requires 865,385 sales per month
Outlet: Spotify, requires 1,312,500 sales per month