The answer is: increased
Since the 1900's World crude steel production has increased and will continue to grow, as China and India are accounting for more than half of its yearly production. The only period of recession can be seen in the image below in 1970, a recession came as a result of stagnating demand for steel products in global markets
but starting this century, the tendency kept growing. In 2017 estimates for the year record 1,691.2 million tonnes.
Ever since then, the steel production has doubled since the mid-1990s
the industry has found new opportunities to restructure and add investments in new technologies.
Hebei China is what is located at those coordinates.<span />
B:American contributions to the columbian exchange
