not on how much they made but "after Google became aware of the investigation" "Google acknowledged that it improperly aided the Canadian pharmacies — which operate illegally by failing to require a prescription or selling counterfeit drugs"
I guess we can take it like this Google violated TOS and as in adsense lost it all. I am sure in the investigation the Govt. had access to all the revenue G brought in and probably just guess at the conversion.
More like Rugles said they are being punished for allowing this to happen. Not like they didn't know. I get emails from time to time my Google Checkout has been disabled because I sell something that violates what they think is a supplement banned in the US, but can do this if so chose.