Mean and range of the coverage and inequality indicators
| Mean | Lowest | Highest | |
| National coverage | 76.4 | 19.4 (South Sudan) | 99.9 (Jordan) |
| Rural coverage | 72.8 | 17.2 (South Sudan) | 99.9 (Jordan) |
| Urban coverage | 80.0 | 23.6 (South Sudan) | 99.7 (Guyana) |
| Rural absolute inequality (SII) | 34.8 | 0.7 (Jordan) | 78.3 (Panama) |
| Urban absolute inequality (SII) | 25.6 | −0.9 (Kyrgyzstan) | 68.8 (Chad) |
| Rural relative inequality (CIX) | 12.2 | 0.1 (Jordan) | 47.9 (Nigeria) |
| Urban relative inequality (CIX) | 5.9 | −0.1 (Belize, Kyrgyzstan) | 26.6 (South Sudan) |
| Urban-rural difference in coverage in the poorest quintile | 10.7 | −10.6 (Malawi) | 34.0 (CAR) |
| Urban-rural difference in absolute inequality (SII) | −9.2 | −77.1 (Panama) | 64.2 (Chad) |
| Urban-rural difference in national coverage | 7.2 | −1.3 (Malawi) | 32.8 (CAR) |
CIX, concentration index; SII, slope index of inequality.