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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Dictating machines not capable of op. without an ext. source of power | $803,944 | $557,396 | | | | | |
| Telephone answering machines | $10,226,163 | $4,624,950 | $3,728,578 | $2,298,212 | $1,396,336 | $791,883 | $363,569 |
| Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20 | $1,016,931 | $315,513 | | | | | |
| Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ... | $720,908,764 | $525,965,731 | | | | | |
| Total | $732,955,802 | $531,463,590 | $3,728,578 | $2,298,212 | $1,396,336 | $791,883 | $363,569 |
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