Comparison of industry revenue as featured in the original paper against the corrected figures for the first and last month of the data series
| Jan-09 | Dec-15 | |||||||
| Original | Corrected | Under reporting | % Original | Original | Corrected | Under reporting | % original | |
| FM premium 20 stick | £1.24 | £1.36 | -£0.12 | 10% | £1.95 | £2.22 | -£0.27 | 14% |
| FM economy 20 stick | £0.77 | £0.86 | -£0.09 | 12% | £1.33 | £1.57 | -£0.24 | 18% |
| FM value 20 stick | £0.38 | £0.46 | -£0.08 | 21% | £0.66 | £0.85 | -£0.19 | 29% |
| FM sub value 19 stick | £0.38 | £0.57 | -£0.19 | 50% | ||||
| RYO premium 12.5g | £1.03 | £1.09 | -£0.06 | 6% | £1.47 | £1.61 | -£0.14 | 10% |
| RYO mid price 12.5g | £0.82 | £0.87 | -£0.05 | 6% | £1.20 | £1.33 | -£0.13 | 11% |
| RYO value 12.5g | £0.80 | £0.86 | -£0.06 | 7% | £0.84 | £0.96 | -£0.12 | 14% |