
| Urban-Rural Zone | Primary (%) | Secondary (%) | Tertiary (%) | Quaternary (%) |
|---|---|---|---|---|
| Ward A: Core CBD | 2 | 3 | 65 | 30 |
| Ward B: Inner City | 3 | 28 | 54 | 15 |
| Ward C: Suburban | 6 | 16 | 69 | 9 |
| Ward D: Rural Fringe | 25 | 13 | 57 | 5 |
State one limitation of using a divided bar chart to present this data.