Table 4. Frequency distribution of the RF-I.
| Range | N | Ratio (%) |
|---|---|---|
| ≤ 10.0 | 1 | 0.71 |
| 10.1 ‒ 12.0 | 2 | 1.43 |
| 12.1 ‒ 14.0 | 34 | 24.29 |
| 14.1 ‒ 16.0 | 45 | 32.14 |
| 16.1 ‒ 18.0 | 38 | 27.14 |
| 18.1 ‒ 20.0 | 15 | 10.71 |
| > 20.0 | 5 | 3.57 |
| Total | 140 | 100 |
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