The industry produced 8,185 million pounds of primary aluminum and 7,588 million pounds of secondary aluminum in 1998. Imports of ingots and mill products contributed another 7,196 million pounds for a total domestic supply of 22,969 million pounds. The transportation sector was the largest market at 7,162 million pounds or 31%; containers/packaging and building/construction comprised another 22% and 13%, respectively. [AA 2000]