| Methods | Coefficients | Ziguinchor | Diourbel | Kaffrine | Kaolack | Kedougou | Louga | Saint-Louis | Tamba | Thies | Dakar |
| Pearson | R | −0.53 | 0.02 | −0.05 | −0.21 | −0.04 | 0.01 | 0.15 | −0.46 | 0.04 | −0.06 |
| P-value | 3 × 10−5 | 0.89 | 0.70 | 0.10 | 0.77 | 0.91 | 0.26 | 5 × 10−4 | 0.77 | 0.65 | |
| Spearman | R | −0.49 | −0.07 | −0.08 | −0.23 | −0.09 | −0.04 | 0.16 | −0.05 | −0.04 | −0.07 |
| P-value | 4 × 10−5 | 0.60 | 0.52 | 0.06 | 0.48 | 0.76 | 0.21 | 2 × 10−3 | 0.75 | 0.57 |