"Real World" Android Version Statistics

Now I know google publishes their google play store version number statistics - but I'm curious on your apps usage statistics. Because in my case android 4 leads by a huge margin.

Yes, it targets a more "sophisticated" user group but it has 10.000+ installs:

Android 4.0.3 - 4.0.4: 52,51 %

Android 2.3.3 - 2.3.7: 26,57 %

Android 4.1: 8,01 %

Android 3.2: 5,00 %

Android 2.2: 4,83 %

Android 2.1: 2,18 %

Android 3.1: 0,70 %

Android 2.3: 0,17 %

Android 3.0: 0,03 %

Since it's for a client I don't want to name the app - but I'm wondering if other developers here can share their statistics.