| Exp. | Operator | Min | Max | Median | Range | Mean | Variance | SD | CV |
| 1. | Halotel | −65.0 | −57.0 | 26 | −8 | −60.9 | 0.3871 | 0.622205 | 2.39 |
| Tigo | −91.2 | −87.2 | 10.9 | −4 | −90.3 | 0.6963 | 0.834423 | 7.34 | |
| Vodacom | −73.0 | −65.0 | 22 | −8 | −68.8 | 1.7010 | 1.304225 | 5.90 | |
| Airtel | −75.7 | −70.4 | 22 | −5.3 | −73.3 | 0.3251 | 0.570218 | 2.58 | |
| 2. | Halotel | −69.0 | −57.0 | 26 | −12 | −61.3 | 1.2669 | 1.125559 | 4.35 |
| Tigo | −103.0 | −55.7 | 10.9 | −47.8 | −79.9 | 66.545 | 8.16365 | 49.39 | |
| Vodacom | −75.0 | −63.0 | 24 | −12.0 | −66.6 | 1.3819 | 1.17556 | 5.07 | |
| Airtel | −77.7 | −60.4 | 20.63 | −17.3 | −69.3 | 6.1055 | 2.47093 | 11.3 | |
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