More than 20 million, mostly for between 20 and 60 satoshies a week ago. I just bought a few million more in its dip to 75 satoshies. I think it will be back up around 100 satoshies in an hour and once people in Europe and the US wake up (remember, it's Saturday, so no work - better morning prices, since most of us don't do this for a living) I think it can shoot up again - how high, I'm not sure. I wouldn't be surprised though if it surpasses its previous peak in the next day or two, because while there are a lot of miners selling a lot of coin, there is a tremendous amount of hype and interest from not only crypotocurrency geeks, but the average Joe and Jane (this coin has huge potential with women, because its more friendly and less techie).

Update: up to 90 satoshies. If I wasn't so heavily invested already, I would buy more right now because its going to keep climbing.

And yes, I am this confident about Dogecoin. If anyone wants to verify that I actually have this much, I'd be glad to send them a screenshot of my wallet.