Commodity2005200620072008200920102011
Objective lenses for cameras/projectors/photog. enlargers/reducers, of any ...$568$2,192$2,276$4,272$13,562$13,963$10,275
Objective lenses (excl. of 9002.11), of any mat., mounted$16,312 $12,642$3,855$8,887$1,071 
Filters (i.e., optical elements), of any mat., mounted$2,381$3,169$6,473$6,157$6,159$8,880$8,342
Lenses, prisms, mirrors & oth.optical elements, of any mat., mounted, being ...$3,622$1,258$2,054$24,663$18,207$15,750$20,235
Total$22,883$6,619$23,445$38,947$46,815$39,664$38,852