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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $12,192,111 | $16,790,197 | $16,450,644 | $16,750,795 | $16,376,965 | $20,395,586 | $19,212,902 |
| Sheets & plates of polarising mat. | $602,537 | $48,240 | $65,917 | $137,651 | $163,291 | $553,184 | $176,484 |
| Contact lenses | $24,577,524 | $31,994,239 | $33,582,825 | $48,551,725 | $47,146,164 | $54,929,136 | $61,097,706 |
| Spectacle lenses of glass, unmounted | $1,356,469 | $1,313,457 | $1,531,457 | $3,569,926 | $3,200,427 | $3,102,715 | $2,288,248 |
| Spectacle lenses of mats. other than glass, unmounted | $16,995,112 | $19,662,900 | $25,317,267 | $33,940,126 | $39,291,035 | $56,560,648 | $70,580,899 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $33,992,977 | $36,241,894 | $32,254,501 | $37,213,695 | $26,501,422 | $24,994,350 | $26,046,839 |
| Total | $89,716,730 | $106,050,927 | $109,202,611 | $140,163,918 | $132,679,304 | $160,535,619 | $179,403,078 |
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