| Years | Trade Value in 1000 USD | Revenue Effect in 1000 USD |
| 2010 | 10,870 | 0.00 |
| 2009 | 4260 | 0.00 |
| 2008 | 9090 | −12.50 |
| 2007 | 7870 | −02.00 |
| 2006 | 170 | −1.30 |