§ (Information supplied by the Mines Department.)
| 1. Average Number of Persons employed in and about Coal Mines. | ||
| Year. | Great Britain. | Scotland. |
| 1913 | 1,104,400 | 139,400 |
| 1925 | 1,102,400 | 126,000 |
| 1935 | 769,500 | 83,500 |
| 2. Average Cash earnings of all wage-earners employed. | ||||||
| Year. | Great Britain. | Scotland. | ||||
| £ | s. | d. | £ | s. | d. | |
| 1913 | 82 | 0 | 0 | Not available | ||
| 1925 | 131 | 15 | 9 | 140 | 5 | 9 |
| 1935 | 118 | 8 | 1 | 134 | 9 | 5 |
§ The particulars of cash earnings shown above do not include the value of allowances in kind which amounted on the average in 1935 to £4 16s. 0d. in Great Britain and 7s. 4d. in Scotland.