Commodity200520062007200820092010
Objective lenses for cameras/projectors/photog. enlargers/reducers, of any ... $163$1,214 $3,447$510
Objective lenses (excl. of 9002.11), of any mat., mounted$2,287$3,974$19,153$1,078$3,308$300
Filters (i.e., optical elements), of any mat., mounted $504$288$57  
Lenses, prisms, mirrors & oth.optical elements, of any mat., mounted, being ...$73$25$1,947$941$70$2,450
Total$2,360$4,666$22,602$2,076$6,825$3,260