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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Dictating machines not capable of op. without an ext. source of power | $314,036 | $148,173 | | | | | |
| Telephone answering machines | $3,073,852 | $2,814,624 | $1,135,617 | $35,125 | $89,693 | $17,481 | $142,517 |
| Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20 | $2,565,545 | $2,913,050 | | | | | |
| Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ... | $21,788,776 | $22,511,466 | | | | | |
| Total | $27,742,209 | $28,387,313 | $1,135,617 | $35,125 | $89,693 | $17,481 | $142,517 |
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