From level 1 to level 7 - x10
From level 8 to level 20 - x18
From level 21 to level 40 - x15
From level 41 to level 51 - x10
From level 51 to level 60 - x8
From level 61 to level 70 - x7
From level 71 to level 80 - x6
From level 81 to level 90 - x5
From level 91 to level 100 - x4
From level 101 to level 130 - x3
From level 131 - x2