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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $9,139,547 | $9,620,627 | $9,217,024 | $8,514,745 | $8,951,864 | $12,723,440 | $16,643,592 |
| Sheets & plates of polarising mat. | $212,606 | $552,125 | $327,674 | $639,610 | $608,810 | $543,395 | $506,589 |
| Contact lenses | $109,327,105 | $110,544,497 | $113,920,847 | $116,248,773 | $116,234,156 | $154,556,196 | $160,515,424 |
| Spectacle lenses of glass, unmounted | $11,240,142 | $10,138,053 | $10,766,132 | $6,539,956 | $1,880,801 | $2,727,637 | $3,836,216 |
| Spectacle lenses of mats. other than glass, unmounted | $73,366,531 | $89,868,752 | $98,705,896 | $104,363,613 | $113,075,399 | $111,004,467 | $115,533,907 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $25,621,205 | $30,315,231 | $36,218,015 | $42,682,963 | $35,757,971 | $48,347,425 | $53,720,531 |
| Total | $228,907,136 | $251,039,285 | $269,155,588 | $278,989,660 | $276,509,001 | $329,902,560 | $350,756,259 |
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