I know this is an old thread but I Just wanted to share that I have been able to replicate these results too! Look at my site here to see how I model my others.
Adsense works with Javascript and mysql. Everytime someone clicks it goes into a HUGE database. With lots of meta-data.
I wish to earn like you also but about 8 months I make 13$ half of your earnings you are GOD GIFTED person. Congratulation for you and enjoy your success I wish you many more and more