Commodity200520062007200820092010
Objective lenses for cameras/projectors/photog. enlargers/reducers, of any ...$168,438 $94,594$382,064$139,721 
Objective lenses (excl. of 9002.11), of any mat., mounted $31 $1,299$129$504
Filters (i.e., optical elements), of any mat., mounted   $204  
Lenses, prisms, mirrors & oth.optical elements, of any mat., mounted, being ...$492 $1,271$614$5,692 
Total$168,930$31$95,865$384,181$145,542$504