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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical fibres, optical fibre bundles & cables (excl. of 85.44) | $9,669,236 | $8,091,735 | $6,525,190 | $6,370,843 | $3,882,489 | $4,136,658 | $7,014,300 |
| Sheets & plates of polarising mat. | $4,144,002 | $4,725,481 | $28,811,408 | $69,454,582 | $111,967,714 | $83,405,825 | $53,043,391 |
| Contact lenses | $4,917,210 | $5,461,470 | $6,947,381 | $10,097,689 | $9,892,319 | $9,856,967 | $14,434,740 |
| Spectacle lenses of glass, unmounted | $36,807,750 | $14,509,793 | $15,780,411 | $13,088,068 | $8,415,090 | $8,207,873 | $4,413,533 |
| Spectacle lenses of mats. other than glass, unmounted | $91,651,468 | $76,956,819 | $96,699,948 | $93,397,482 | $78,217,102 | $88,342,261 | $50,868,661 |
| Lenses (excl. of 9001.30-9001.50), prisms, mirrors & oth. optical elements, ... | $8,292,160 | $9,363,608 | $35,104,620 | $157,107,755 | $117,868,031 | $62,480,391 | $69,954,199 |
| Total | $155,481,826 | $119,108,906 | $189,868,958 | $349,516,419 | $330,242,745 | $256,429,975 | $199,728,824 |
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