|  | The Dagum Gini coefficient | Contribution rate (%) | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | Total | Central Region | Eastern Region | Western Region | Eastern & Central Region | Eastern & Western Region | Central & Western Region | Within group | Between group | Super-variable density |
2013 | 0.262 | 0.105 | 0.254 | 0.149 | 0.386 | 0.298 | 0.177 | 26.382 | 66.048 | 7.570 |
2014 | 0.284 | 0.099 | 0.286 | 0.196 | 0.391 | 0.314 | 0.213 | 28.380 | 60.600 | 11.020 |
2015 | 0.281 | 0.170 | 0.270 | 0.223 | 0.379 | 0.282 | 0.263 | 29.836 | 52.798 | 17.366 |
2016 | 0.26 | 0.119 | 0.278 | 0.176 | 0.362 | 0.266 | 0.229 | 29.317 | 56.325 | 14.358 |
2017 | 0.259 | 0.122 | 0.259 | 0.170 | 0.369 | 0.255 | 0.261 | 28.046 | 57.405 | 14.549 |
2018 | 0.242 | 0.106 | 0.269 | 0.152 | 0.333 | 0.260 | 0.193 | 29.120 | 56.220 | 14.661 |
2019 | 0.249 | 0.068 | 0.298 | 0.189 | 0.313 | 0.276 | 0.185 | 31.156 | 46.204 | 22.640 |