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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $2,350,702 | $3,346,700 | $4,326,688 | $5,648,278 | $5,486,550 | $3,696,395 |
| Sheets & plates of polarising mat. | $90,693 | $55,942 | $112,935 | $43,830 | $7,109 | $13,939 |
| Contact lenses | $11,466,010 | $8,044,156 | $11,746,107 | $13,319,433 | $13,424,339 | $19,171,370 |
| Spectacle lenses of glass, unmounted | $19,963,050 | $23,343,969 | $27,889,602 | $30,549,756 | $27,680,252 | $16,849,729 |
| Spectacle lenses of mats. other than glass, unmounted | $8,511,321 | $9,509,294 | $13,281,955 | $12,771,997 | $11,424,462 | $9,822,636 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $2,365,757 | $2,038,389 | $2,160,950 | $2,615,392 | $2,695,049 | $1,763,994 |
| Total | $44,747,533 | $46,338,450 | $59,518,237 | $64,948,686 | $60,717,761 | $51,318,063 |
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