I joined about 2 weeks ago. My CPM was 12 bucks and now 2 weeks later (29 hubs later) my CPM is 33 cents. As I started getting more and more views my CPM actually went down.
Upon further investigation I found out that 9 dollars is just a guesstimate. And once you build a bigger hub base the true value of your CPM is shown...hence the 33 cents.