
| Upper bound of category | Frequency | Frequency % | Cummulative frequency % |
| 63.7 | 2252 | 75.6 | 75.6 |
| 89.3 | 123 | 4.1 | 79.7 |
| 114.9 | 89 | 3.0 | 82.7 |
| 140.4 | 132 | 4.4 | 87.1 |
| 166.0 | 128 | 4.3 | 91.4 |
| 191.6 | 121 | 4.1 | 95.5 |
| 217.2 | 73 | 2.4 | 97.9 |
| 242.8 | 37 | 1.2 | 99.2 |
| 268.4 | 17 | 0.6 | 99.7 |
| 293.9 | 5 | 0.2 | 99.9 |
| 319.5 | 1 | 0.0 | 99.9 |
| 345.1 | 1 | 0.0 | 100.0 |
| 370.7 | 0 | 0.0 | 100.0 |
| 396.3 | 0 | 0.0 | 100.0 |
| 421.9 | 0 | 0.0 | 100.0 |
| 447.4 | 0 | 0.0 | 100.0 |
| 473.0 | 0 | 0.0 | 100.0 |
| 498.6 | 0 | 0.0 | 100.0 |
| 524.2 | 0 | 0.0 | 100.0 |
| 549.8 | 0 | 0.0 | 100.0 |
| 575.4 | 0 | 0.0 | 100.0 |
| 600.9 | 0 | 0.0 | 100.0 |
| 626.5 | 0 | 0.0 | 100.0 |
| 652.1 | 0 | 0.0 | 100.0 |
| 677.7 | 0 | 0.0 | 100.0 |
| 703.3 | 0 | 0.0 | 100.0 |
| 728.9 | 0 | 0.0 | 100.0 |
| 754.4 | 0 | 0.0 | 100.0 |
| 780.0 | 0 | 0.0 | 100.0 |
| 805.6 | 0 | 0.0 | 100.0 |
| 831.2 | 0 | 0.0 | 100.0 |
| 856.8 | 0 | 0.0 | 100.0 |
| 882.4 | 0 | 0.0 | 100.0 |
| 907.9 | 0 | 0.0 | 100.0 |
| 933.5 | 0 | 0.0 | 100.0 |
| 959.1 | 0 | 0.0 | 100.0 |
| 984.7 | 0 | 0.0 | 100.0 |
| 1010.3 | 0 | 0.0 | 100.0 |
| 1035.9 | 0 | 0.0 | 100.0 |
| 1061.5 | 0 | 0.0 | 100.0 |
| 1087.0 | 0 | 0.0 | 100.0 |
| 1112.6 | 0 | 0.0 | 100.0 |
| 1138.2 | 0 | 0.0 | 100.0 |
| 1163.8 | 0 | 0.0 | 100.0 |
| 1189.4 | 0 | 0.0 | 100.0 |
| 1215.0 | 0 | 0.0 | 100.0 |
| 1240.5 | 0 | 0.0 | 100.0 |
| 1266.1 | 0 | 0.0 | 100.0 |
| 1291.7 | 0 | 0.0 | 100.0 |
| 1317.3 | 1 | 0.0 | 100.0 |