Mine is also in nineties. I should have got more than 50$ from IRC itself because I do not get much from ISC. I have started getting from ISC only recently after I started posting in My India section.
From ammas and my blog also I get some but it is mostly from IRC only. two days back I got one big jump of $2.97 (just one click) from IRC, that too from products side.
So don't worry. IRC will give you more adsense as days go by. Rajmi and I have been getting adsense mostly through IRC and you know how many pages, we both put in here.
India Review Channel