================================================================= | 1902 | 1903 | --------------------------------------+------------+------------+ Ore mined | 16,063,179 | 15,363,355 | Coal mined--not for making coke | 709,367 | 1,120,733 | Limestone | 1,313,120 | 1,268,930 | Coke | 9,521,567 | 8,658,391 | Pig Iron, Spiegel and Ferro-Manganese | 7,975,530 | 7,279,241 | Bessemer Steel | 6,759,210 | 6,191,660 | Open-hearth Steel | 2,984,708 | 2,976,300 | Finished Steel | 8,197,232 | 7,635,690 | Cement (bbls.) | 486,357 | 644,286 | --------------------------------------+------------+------------+ ================================================================= | 1904 | 1905 | --------------------------------------+------------+------------+ Ore mined | 10,503,087 | 18,486,556 | Coal mined--not for making coke | 1,998,000 | 2,204,950 | Limestone | 1,393,149 | 1,967,355 | Coke | 8,652,293 | 12,242,909 | Pig Iron, Spiegel and Ferro-Manganese | 7,369,421 | 10,172,148 | Bessemer Steel | 5,427,979 | 7,379,188 | Open-hearth Steel | 2,978,399 | 4,616,015 | Finished Steel | 6,792,780 | 9,226,386 | Cement (bbls.) | 539,951 | 1,735,343 | --------------------------------------+------------+------------+ =============================================================== | 1906 | 1907 --------------------------------------+------------+----------- Ore mined | 20,645,148 | 22,403,801 Coal mined--not for making coke | 1,912,444 | 3,550,510 Limestone | 2,227,436 | 2,957,163 Coke | 13,295,075 | 12,373,938 Pig Iron, Spiegel and Ferro-Manganese | 11,058,526 | 10,631,620 Bessemer Steel | 8,072,655 | 7,556,460 Open-hearth Steel | 5,438,494 | 5,543,088 Finished Steel | 10,578,433 | 10,376,742 Cement (bbls.) | 2,076,000 | 2,129,700 --------------------------------------+------------+-----------