This file defines the experience bonus, in percent, granted for the current value of wisdom of the character.
The first column is filled by the value of wisdom.
The second column defines the experience bonus granted to the character with the specified wisdom, as a percentage value.

In PSTEE we have:

2DA V1.0
0
        XPBONUS
9       0
10      0
11      0
12      0
13      2
14      5
15      8
16      10
17      13
18      15
19      18
20      20
21      23
22      25
23      27
24      30
25      35