4.4 billion coins were sold in the token sale
   .6  billion estimated in referral bonuses

Plus whatever has been mined so far

These will be the coins in circulation


For transparency

12.6 were premined total
  7.6 estimated will be locked away and put out slowly to mobile miners

That leaves the 5 Billion to investors and referral bonuses

CMC has said they will count only the mined coins, investor coins, and referral coins as in circulation. We will see if thats how they do it soon enough, but that is what we were told.