C—2

To establish a basis of comparison, these figures have been calculated for the years 1936 onward, and the tabulation below shows the figures for these years. For the years prior to 1936 the figures published in the respective Mines Statements covering those years can be taken unchanged :

Annual Output per Man employed in Coal-mines Underground Mines

Opencast Mines

Combined Underground and Opencast Mines

4

Year. Production. Men employed Men employed Tons per Man Tons per Man Underground. on Surface. Underground. on Pay-roll. Tons. 1936 2,108,238 3,154 1,040 668 503 1937 2,238,651 3,288 1,074 681 513 1938 2,180,122 3,368 1,142 647 483 1939 2,296,007 3,542 1,164 648 488 1940 2,465,336 3,769 1,241 654 492 1941 2,585,324 3,633 1,325 712 521 1942 2,624,267 3,659 1,291 717 530 1943 2,725,831 3,999 1,329 682 512 1944 2,609,516 3,958 1,395 659 489 1945 2,380,896 3,932 1,328 606 453

Year. Production. Men employed. Tons per Man employed. Tons. 1936 . 31,979 63 508 1937 . 39,148 55 712 ] 938 . 41,966 53 792 1939 . 46,632 56 833 1940 . 50,763 36 1,410 1941 54,183 33 1,642 1942 . 55,774 47 1,187 1943 . 62,037 46 1,349 1944 . 196,454 242 812 1945 452,680 332 1,363

Year. Production. Men employed. Tons per Man employed. Tons. 1936 .. 2,140,217 4,257 503 1937 . 2,277,799 4,417 516 1938 . 2,222,088 4,563 487 1939 . 2,342,639 4,762 492 1940 . 2,516,099 5,046 499 1941 . 2,639,507 4,991 529 1942 . 2,680,041 4,997 536 1943 . 2,787,868 5,374 519 1944 . 2,805,970 5,595 502 1945 . 2,833,576 5,592 587