Interesting, thanks for sharing. You are mixing up numbers i guess, because the $5 bln were referred to offers during the pre-sale: NOT actual payments. I'll investigate, but there's no official info on the ICO yet. It's still open and will be for some time as they are supposed to finish the coins for that stage (about 70 million in total).
I also couldn't find any official info on ACTUAL PAYMENTS. Only some tweets and articles in the mass media, which is frankly not a very reliable source.