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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $8,651,486 | $27,086,202 | $77,907,928 | $65,233,697 | $38,209,281 | $35,300,083 | $42,742,654 |
| Sheets & plates of polarising mat. | $21,024 | $4,039 | $32,938 | $41,912 | $297,713 | $95,338 | $324,407 |
| Contact lenses | $3,490,343 | $3,987,685 | $5,744,450 | $8,682,083 | $10,454,521 | $12,409,996 | $12,098,313 |
| Spectacle lenses of glass, unmounted | $3,815,363 | $2,057,135 | $2,972,043 | $4,762,414 | $6,605,328 | $7,175,897 | $9,205,800 |
| Spectacle lenses of mats. other than glass, unmounted | $12,152,936 | $25,481,385 | $21,434,240 | $28,864,324 | $30,466,655 | $34,432,676 | $44,614,011 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $7,840,135 | $7,499,396 | $20,144,266 | $15,580,397 | $15,167,296 | $19,340,353 | $28,919,648 |
| Total | $35,971,287 | $66,115,842 | $128,235,865 | $123,164,827 | $101,200,794 | $108,754,343 | $137,904,833 |
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