| Stations | Z | n | p-value | S | varS | tau | Sen’s Slope | 95 percent confidence interval |
| Asaba | 6.1066 | 35 | 0.00000 | 431 | 4958.333 | 0.7244 | 0.05639 | 0.04250228 - 0.06686356 |
| Benin | 6.9019 | 35 | 0.00000 | 487 | 4958.333 | 0.8185 | 0.05921 | 0.05366819 - 0.06765427 |
| Calabar | 6.5611 | 35 | 0.00000 | 463 | 4958.333 | 0.7782 | 0.03966 | 0.03307859 - 0.04510242 |
| Eket | 2.5563 | 35 | 0.01058 | 181 | 4958.333 | 0.3042 | 0.01850 | 0.005588505 - 0.033669868 |
| Ikeja | −6.0782 | 35 | 0.00000 | −429 | 4958.333 | −0.7210 | −0.04128 | −0.04861883 - −0.03215952 |
| Kaduna | 3.3515 | 35 | 0.00080 | 237 | 4958.333 | 0.3983 | 0.02064 | 0.00913242 - 0.03208904 |
| Lokoja | 5.6522 | 35 | 0.00000 | 399 | 4958.333 | 0.6706 | 0.05773 | 0.04387763 - 0.07095408 |
| Oshogbo | 3.2663 | 35 | 0.00109 | 231 | 4958.333 | 0.3882 | 0.01967 | 0.009215753 - 0.029984631 |
| Uyo | 6.277 | 35 | 0.00000 | 443 | 4958.333 | 0.7445 | 0.03849 | 0.03210228 - 0.04894521 |
| Warri | 7.4984 | 35 | 0.00000 | 529 | 4958.333 | 0.8891 | 0.08267 | 0.07718493 - 0.08942586 |
| Yelwa | 6.8735 | 35 | 0.00000 | 485 | 4958.333 | 0.8151 | 0.11688 | 0.1030335 - 0.1292066 |