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| Commodity | 2005 | 2006 | 2008 | 2009 | 2010 | 2011 |
| Dictating machines not capable of op. without an ext. source of power | $124 | $3,601 | | | | |
| Telephone answering machines | | $21,468 | $1,121 | $734 | $960 | $2,655 |
| Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20 | $7,359 | $161,685 | | | | |
| Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ... | $355,750 | $370,126 | | | | |
| Total | $363,233 | $556,880 | $1,121 | $734 | $960 | $2,655 |
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