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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $15,002,691 | $20,336,958 | $14,053,152 | $10,662,069 | $7,783,854 | $10,890,085 | $10,118,160 |
| Sheets & plates of polarising mat. | | $12,362 | $48,485 | $198,422 | $66,018 | $140,389 | $91,957 |
| Contact lenses | $2,640,263 | $2,492,533 | $2,447,056 | $1,050,744 | $2,227,356 | $1,957,151 | $2,147,104 |
| Spectacle lenses of glass, unmounted | $69,266 | $40,949 | $541,578 | $1,493,479 | $288,492 | $89,140 | $48,645 |
| Spectacle lenses of mats. other than glass, unmounted | $4,611,818 | $6,643,601 | $6,640,897 | $6,277,667 | $6,008,625 | $4,584,460 | $4,592,627 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $29,778,507 | $28,429,695 | $35,692,329 | $51,392,474 | $43,559,453 | $51,759,899 | $40,429,367 |
| Total | $52,102,545 | $57,956,098 | $59,423,497 | $71,074,855 | $59,933,798 | $69,421,124 | $57,427,860 |
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