It got close to 2 million viewers on TV for the premiere episode, which is pretty darn good for an animated series.
The viewing figure is buried here, in this page:
But for the second episode, it dropped to about half a million. I don't know if that kind of drop-off was expected, or not.
Beyond that, I can't find any more information about the ratings. These numbers don't include online viewing, either.
EDIT: Wait, found some more data. It's been averaging about half a million viewers per week, since the premiere.
Here's a page with the viewing figure for last week's episode:
where to buy abortion pills online http://www.extrageek.com/template/default.aspx?an-abortion-pill buy abortion pills online