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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $10,457,513 | $8,494,244 | $10,188,297 | $13,202,321 | $7,640,500 | $18,776,222 | $32,834,475 |
| Sheets & plates of polarising mat. | $4,520,623 | $4,836,365 | $20,353,473 | $77,827,024 | $47,063,137 | $76,010,682 | $53,577,997 |
| Contact lenses | $12,802,912 | $14,527,688 | $20,507,122 | $18,757,226 | $20,137,182 | $24,620,472 | $15,738,656 |
| Spectacle lenses of glass, unmounted | $1,494,411 | $1,147,457 | $1,162,924 | $844,847 | $534,259 | $509,901 | $401,490 |
| Spectacle lenses of mats. other than glass, unmounted | $40,973,057 | $31,366,854 | $29,691,360 | $34,482,279 | $46,824,215 | $62,644,835 | $78,546,439 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $86,024,927 | $94,639,697 | $119,334,717 | $140,876,197 | $117,898,459 | $82,434,762 | $65,568,495 |
| Total | $156,273,443 | $155,012,305 | $201,237,893 | $285,989,894 | $240,097,752 | $264,996,874 | $246,667,552 |
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