Area | Sample size | Mean | Std.dev. | Max | Min |
Eastern | 1212 | 4719.44 | 3992.31 | 34,949.07 | 173.83 |
Central | 1212 | 4315.37 | 5340.95 | 132,443.86 | 94.50 |
Western | 1008 | 4631.83 | 4605.76 | 29,992.69 | 31.91 |
National | 3432 | 4552.36 | 4685.56 | 132,443.86 | 31.91 |