In case anyone is interested these are the amount of xp (total) required for each level.

1 - 0
2 - 220
3 - 460
4 - 800
5 - 1150
6 - 1510
7 - 2060
8 - 2640
9 - 3250
10 - 4050
11 - 5010
12 - 6800
13 - 10500
14 - 16900
15 - 27100
16 - 41100
17 - 61100
18 - 85100
19 - 111000
20 - 141100