So i have been wondering where do you get the data for the total wagered since PrimeDice has omitted that from the homepage ?

Never thought that you can get that status from the API and it makes me wonder why stunna take down the wagered
BTC amount from their sites if it is still available through their API
and also I only saw abit of dicesites listed on your sites which dadice and rollin.io is not included although both sides seems to be getting some attraction lately.
Currently it's only for the most popular sites that have been around for a while. In the future I will add more newer sites. rollin.io actually has been around for a while but afaik they only share number of bets, not wagered amount

It must been a real pain to add the new sites each time they pop out so I think your reason of only adding the popular sites is indeed correct. Wonder how long does it takes for a sites to be added in your sites by your definition of "popular and has been around for a while"?
P.S : is there a way to know number of bet per day in a sites? this could be a better parameter to know the effect of PrimeDice no longer accepting player from US