Vend of Coals from Hartley and Blyth Collieries.
Shipped of Newcastle Chaldrons
| Year | Coastways | Oversea | Total |
| 1791 | 39,619 | 127 | 39,844 |
| 1792 | 38,440 | 234 | 39,844 |
| 1793 | 38,550 | 48 | 38,698 |
| 1794 | 37,652 | 128 | 37,830 |
| 1795 | 31,494 | 48 | 31,542 |
| 1796 | 29,723 | 542 | 30,265 |
| 1797 | 39,606 | 32 | 39,637 |
| 1798 | 37,833 | 166 | 37,999 |
| 1799 | 41,689 | 127 | 41,812 |
| ..... | ........ | ...... | ........ |
| 1809 | ...... | ...... | 48,052 |
| 1810 | ...... | ...... | 47,330 |
| 1811 | ...... | ...... | 53,958 |
Coals imported into London.
Of London Chaldrons
| Coastways | |
| From 1776 to 1779 on an average yearly | 658,653 |
| 1801 | 862,088 |
| 1802 | 902,224 |
| 1803 | 940,470 |
| 1804 | 947,001 |
| 1805 | 971,270 |
| 1806 | 987,750 |
| 1807 | 933,148 |
| 1808 | 1,088,050 |
| 1809 | 923,440 |
| 1810 | 1,120,237 |
| 1811 | 1,115,171 |
| 1812 | 1,071,361 |
| 1813 | 970,901 |
50,000 Chaldrons year by the Canal.
