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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Watch cases of precious metal/metal clad with precious metal | | | | | | | $847 |
| Watch cases of base metal, whether or not gold- /silver-plated | $186 | | $477 | $111 | $998 | $203 | |
| Watch cases n.e.s. in 91.11 | $2,775 | $8,049 | $11,663 | $3,162 | $1,744 | $13,619 | $21,026 |
| Parts of the watch cases of 91011 | $1,850 | $3,248 | $1,723 | $665 | $119 | $854 | |
| Total | $4,811 | $11,297 | $13,863 | $3,938 | $2,861 | $14,676 | $21,873 |
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