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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $21,455,458 | $14,971,637 | $20,586,758 | $27,630,588 | $23,793,105 | $21,111,607 | $24,659,285 |
| Sheets & plates of polarising mat. | $237,159 | $258,905 | $344,523 | $474,277 | $249,715 | $485,599 | $2,080,072 |
| Contact lenses | $22,283,870 | $26,930,840 | $30,285,724 | $38,563,028 | $45,618,687 | $55,657,434 | $67,087,046 |
| Spectacle lenses of glass, unmounted | $7,511,759 | $6,700,688 | $6,734,216 | $6,710,773 | $6,111,359 | $5,127,644 | $4,849,075 |
| Spectacle lenses of mats. other than glass, unmounted | $52,119,535 | $58,431,794 | $65,963,589 | $71,241,344 | $62,730,939 | $64,356,668 | $63,177,536 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $86,139,791 | $82,961,916 | $80,173,477 | $83,873,917 | $59,860,378 | $74,613,197 | $86,646,532 |
| Total | $189,747,572 | $190,255,780 | $204,088,287 | $228,493,927 | $198,364,183 | $221,352,149 | $248,499,546 |
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