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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Dictating machines not capable of op. without an ext. source of power | $28,006 | $19,869 | | | | | |
| Telephone answering machines | $251,867 | $391,900 | $82,799 | $80,859 | $20,521 | $30,368 | $57,274 |
| Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20 | $9,854 | $50,476 | | | | | |
| Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ... | $6,756,093 | $8,113,363 | | | | | |
| Total | $7,045,820 | $8,575,608 | $82,799 | $80,859 | $20,521 | $30,368 | $57,274 |
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