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| Commodity | 2005 | 2006 | 2007 |
| Microphones & stands therefor | $54,418 | $12,336 | $121,411 |
| Single loudspeakers, mounted in their enclosures | $88,262 | $91,003 | $167,957 |
| Multiple loudspeakers, mounted in the same enclosure | $7,125 | $10,959 | $1,572 |
| Loudspeakers n.e.s. in 85.18, whether or not mounted in their enclosures | $16,290 | $22,693 | $21,037 |
| Headphones & earphones, whether or not combined with a microphone, & sets c ... | $12,758 | $57,711 | $71,034 |
| Audio-frequency elec. amplifiers | $17,978 | $34,871 | $40,019 |
| Electric sound amplifier sets | $26,890 | $79,710 | $108,464 |
| Parts of the app. & equip. of 85.18 | $33,621 | $43,795 | $51,899 |
| Total | $257,342 | $353,078 | $583,393 |
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