| Score range | Grade | Level |
|---|---|---|
0-74 | D | Low |
75 - 149 | DD | Low |
150 - 224 | DDD | Low |
225 - 299 | C | Low |
300 - 449 | CC | Low |
450 - 599 | CCC | Low |
600 - 749 | B | Medium |
750 - 899 | BB | Medium |
900 - 1199 | BBB | High |
1200 - 1799 | A | High |
1800 - 2699 | AA | Excellent |
2700 - 3000 | AAA | Excellent |