RIG Ticket Drop Rates?

So I've been chasing tickets through RIGs on Gaia and have opened 100+ of a certain RIG (Angelic Harp) and got nothing remotely good. Opened up another 70 of their newest bundle and got nothing good there either.

I wanted to know if there's any post or data that tracks the pull rates for high-value items like the licenses/ tickets. Would love any insight before I start buying even more RIGs haha