These are the levels for the game goin easies to hardest:
1.1893
2.2805
3.9271
4.1254
5.8649
6.5943
7.6045
8.2850
9.8146
10.9156
11.2715
12.0687
13.3725
14.0157
15.5826
16.9587
17.3752