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| Chapter | 2005 | 2006 | 2007 | 2008 |
| Railway or tramway locomotives, rolling-stock and parts thereof | $11,343,090 | $10,339,623 | $11,653,597 | $23,801,199 |
| Vehicles other than railway or tramway rolling stock | $46,158,391 | $53,389,741 | $73,782,366 | $123,222,312 |
| Aircraft, spacecraft, and parts thereof | $105,212 | $47,065 | $213,125 | $52,903 |
| Ships, boats and floating structures | $583,773 | $132,198 | $2,579,736 | $1,346,250 |
| Total | $58,190,466 | $63,908,627 | $88,228,824 | $148,422,664 |
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