American whalers and their oil production between 1762-1772

1762: 78 whalers, 9,440 barrels oil

1763: 60 whalers, 9,238 barrels oil

1764: 72 whalers, 11,983 barrels oil

1765: 101 whalers, 11,512 barrels oil

1766: 118 whalers, 11,969 barrels oil

1767: 108 whalers 16,561 barrels oil

1768: 25 whalers, 15,349 barrels oil

1769-119 whalers, 19,140 barrels oil

1770: 125 whalers, 14,331 barrels oil

1771: 115 whalers, 12,754 barrels oil

1772: 98 whalers, 7,825 barrels oil

Source

John MacGregor. The progress of America from the discovery by Columbus to the year 1846. Vol II. London, 1847, p. 586.