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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $21,900,355 | $24,114,919 | $21,525,367 | $22,519,052 | $21,058,276 | $21,586,899 |
| Sheets & plates of polarising mat. | $284,703 | $496,066 | $171,757 | $1,067,022 | $118,995 | $287,408 |
| Contact lenses | $52,121,662 | $40,878,299 | $60,370,863 | $88,781,766 | $87,061,437 | $107,854,464 |
| Spectacle lenses of glass, unmounted | $21,370,599 | $28,303,129 | $33,917,414 | $36,346,346 | $43,859,641 | $38,143,793 |
| Spectacle lenses of mats. other than glass, unmounted | $64,451,404 | $72,741,303 | $90,165,263 | $100,881,839 | $92,758,707 | $71,289,919 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $22,291,619 | $29,473,988 | $12,453,604 | $10,742,399 | $6,362,354 | $6,703,520 |
| Total | $182,420,342 | $196,007,704 | $218,604,268 | $260,338,424 | $251,219,410 | $245,866,003 |
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