Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$5,436,079$6,329,328$7,841,180$4,417,580$3,802,832$8,495,239$16,839,413
Total$5,436,079$6,329,328$7,841,180$4,417,580$3,802,832$8,495,239$16,839,413