Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$2,865,552$2,382,815$1,999,161$1,061,394$3,106,568$6,037,533$4,869,225
Total$2,865,552$2,382,815$1,999,161$1,061,394$3,106,568$6,037,533$4,869,225