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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Central heating boilers (excl. of 84.02) | $782,053,653 | $854,786,352 | $917,099,002 | $932,530,171 | $668,644,109 | $711,012,651 | $724,632,962 |
| Parts of the boilers of 8403.10 | $197,130,652 | $254,178,019 | $337,189,668 | $337,097,936 | $305,604,574 | $345,776,444 | $379,992,356 |
| Total | $979,184,305 | $1,108,964,371 | $1,254,288,670 | $1,269,628,107 | $974,248,683 | $1,056,789,095 | $1,104,625,318 |
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