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| Chapter | 2005 | 2006 | 2007 | 2008 |
| Railway or tramway locomotives, rolling-stock and parts thereof | $12,919,338 | $5,869,071 | $20,379,253 | $2,632,984 |
| Vehicles other than railway or tramway rolling stock | $386,791,671 | $421,044,682 | $493,810,077 | $610,504,885 |
| Aircraft, spacecraft, and parts thereof | $17,839,297 | $68,907,982 | $10,096,997 | $12,687,333 |
| Ships, boats and floating structures | $57,711,822 | $15,450,624 | $138,942,354 | $23,519,730 |
| Total | $475,262,128 | $511,272,359 | $663,228,681 | $649,344,932 |
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