Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$2,981,264$3,757,241$6,335,825$5,892,913$4,361,144$5,051,877$2,288,300
Total$2,981,264$3,757,241$6,335,825$5,892,913$4,361,144$5,051,877$2,288,300