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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $7,131,574 | $6,829,438 | $9,277,020 | $26,935,517 | $18,182,927 | $15,988,508 | $20,719,148 |
| Sheets & plates of polarising mat. | $7,258 | $4,708 | $96,819 | $10,346,517 | $1,050,617 | $231,217 | $189,871 |
| Contact lenses | $2,910,828 | $2,447,467 | $3,094,431 | $68,260,349 | $79,885,536 | $85,672,253 | $68,908,047 |
| Spectacle lenses of glass, unmounted | $615,435 | $625,700 | $328,365 | $1,062,912 | $138,209 | $669,709 | $92,642 |
| Spectacle lenses of mats. other than glass, unmounted | $2,202,050 | $2,864,235 | $3,563,984 | $3,845,967 | $5,471,027 | $7,349,315 | $4,910,230 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $347,083 | $394,747 | $381,516 | $2,386,235 | $18,183,562 | $36,129,193 | $36,401,661 |
| Total | $13,214,228 | $13,166,295 | $16,742,135 | $112,837,497 | $122,911,878 | $146,040,195 | $131,221,599 |
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