Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$4,543,196$8,869,724$5,933,618$7,385,510$9,130,474$4,878,143$8,200,470
Total$4,543,196$8,869,724$5,933,618$7,385,510$9,130,474$4,878,143$8,200,470