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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Dictating machines not capable of op. without an ext. source of power | $2,405,180 | $1,605,846 | | | | | |
| Telephone answering machines | $868,503 | $788,484 | $992,336 | $632,127 | $408,059 | $1,149,188 | $749,978 |
| Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20 | $878,457 | $994,394 | | | | | |
| Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ... | $319,836,634 | $293,494,338 | | | | | |
| Total | $323,988,774 | $296,883,062 | $992,336 | $632,127 | $408,059 | $1,149,188 | $749,978 |
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