Commodity20052006200820092010
Spectacle lenses of glass, unmounted $15   
Spectacle lenses of mats. other than glass, unmounted  $5 $6,432
Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ...$732 $42$367 
Total$732$15$47$367$6,432