Network hashrate history

Hey, everybody.
I am looking for a resource where I could get historical network hashrate for Zcash, and I can’t seem to find one.
I want to introduce some more insights in http://altanga.com

If you are pushing your site to a ZEC forum, could you get ZEC appearing on the home page as one of the currencies? for example, replace “ETC”…

ZEC and other altcoins are available in http://altanga.com/currencies. But that’s not the question. The question is about historical hashrate. Do you know where I can get it?

coinwarz.com
You should be able to download and parse their data