size 1 | 2 | 5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 150 | |
copper sheeting | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 5 | 7 | 11 | 15 | 23 | 31 | 191 | ||
cut stone | 2 | 1 | 1 | 2 | 2 | 2 | 4 | 6 | 10 | 14 | 22 | 30 | 46 | 62 | 382 | |
iron bars | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 5 | 7 | 11 | 15 | 23 | 31 | 191 | ||
oil | 11 | 2 | 4 | 7 | 9 | 14 | 19 | 29 | 49 | 69 | 109 | 149 | 229 | 309 | 1909 | |
slate | 15 | 3 | 6 | 10 | 13 | 20 | 27 | 41 | 69 | 97 | 153 | 209 | 321 | 433 | 2673 | |
steelwire | 20 | 1 | 4 | 9 | 13 | 18 | 28 | 37 | 56 | 94 | 132 | 208 | 284 | 436 | 588 | 3628 |