| 1 | Equally preferred |
| 2 | Equally to moderately preferred |
| 3 | Moderately preferred |
| 4 | Moderately to strongly preferred |
| 5 | Strongly preferred |
| 6 | Strongly to very strongly preferred |
| 7 | Very strongly preferred |
| 8 | Very to extremely strongly preferred |
| 9 | Extremely preferred |