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| Commodity | 2009 | 2010 |
| Microphones & stands therefor | $29,956 | $62,866 |
| Single loudspeakers, mounted in their enclosures | $102,793 | $210,469 |
| Multiple loudspeakers, mounted in the same enclosure | $1,046,649 | $1,455,744 |
| Loudspeakers n.e.s. in 85.18, whether or not mounted in their enclosures | $566,291 | $917,272 |
| Headphones & earphones, whether or not combined with a microphone, & sets c ... | $221,239 | $328,273 |
| Audio-frequency elec. amplifiers | $145,214 | $205,165 |
| Electric sound amplifier sets | $131,280 | $360,622 |
| Parts of the app. & equip. of 85.18 | $99,368 | $348,658 |
| Total | $2,342,790 | $3,889,069 |
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