|
| Commodity | 2007 | 2008 | 2009 | 2010 | 2011 |
| Spectacle lenses of glass, unmounted | | $16 | $2,503 | $475 | $1,536 |
| Spectacle lenses of mats. other than glass, unmounted | $3,054 | | $1,419 | $485 | |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | | $1,918 | $1,592 | | |
| Total | $3,054 | $1,934 | $5,514 | $960 | $1,536 |
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