Replying to CU Boulder tuition for out-of state residents???

I live in PA and I'm really looking into CU Boulder, but I was wondering how much the out of state is per year there as opposed to being in state? My aunt lives there and I was wondering if there's any way I can get around being out of state and use their name/address/info whatever to get the instate tuition. I was just wondering if anyone on newschoolers is going there from out of state and how much i should expect to be looking at for this?