Number of Workers in the Somerset District
| Underground | Above Ground | Total | ||||||||||
| 13 & 14 | 14 to 16 | Over 16 | Total | 12 to 14 | 14 to 16 | Over 16 | Total | |||||
| Male | Female | Male | Female | Male | Female | |||||||
| 1901 | 56 | 351 | 4,155 | 4,562 | 7 | 0 | 38 | 0 | 805 | 0 | 850 | 5,412 |
| 1902 | 70 | 322 | 4,309 | 4,701 | 4 | 0 | 38 | 0 | 812 | 0 | 854 | 5,555 |
| 1903 | 70 | 292 | 4,223 | 4,585 | 8 | 0 | 43 | 0 | 788 | 0 | 839 | 5,424 |
| 1904 | 24 | 295 | 4,147 | 4,466 | 9 | 0 | 39 | 0 | 820 | 1 | 869 | 5,335 |
| 1905 | 25 | 263 | 4,440 | 4,728 | 2 | 0 | 44 | 0 | 851 | 1 | 898 | 5,626 |
| 1906 | 43 | 243 | 4,417 | 4,703 | 7 | 0 | 38 | 0 | 890 | 0 | 935 | 5,638 |
| 1907 | 50 | 358 | 4,615 | 5,023 | 5 | 0 | 51 | 0 | 808 | 0 | 864 | 5,887 |
| 1908 | 60 | 369 | 4,833 | 5,262 | 10 | 0 | 60 | 0 | 866 | 1 | 937 | 6,199 |
| 1909 | 85 | 329 | 5,010 | 5,424 | 21 | 0 | 44 | 0 | 923 | 3 | 991 | 6,415 |
| 1910 | 40 | 352 | 5,045 | 5,437 | 32 | 0 | 47 | 0 | 910 | 2 | 991 | 6,428 |
| 1911 | 46 | 393 | 5,265 | 5,704 | 22 | 0 | 56 | 0 | 956 | 2 | 1,036 | 6,740 |