|
| year | imports | change |
| 1990 | 22.60 | NA |
| 1991 | 11.27 | -50.13 % |
| 1992 | 58.59 | 419.88 % |
| 1993 | 28.71 | -51.00 % |
| 1994 | 36.66 | 27.69 % |
| 1995 | 23.80 | -35.08 % |
| 1996 | 43.01 | 80.73 % |
| 1997 | 44.85 | 4.27 % |
| 1998 | 27.97 | -37.64 % |
| 1999 | 28.39 | 1.52 % |
| 2000 | 57.46 | 102.36 % |
| 2001 | 138.08 | 140.32 % |
| 2002 | 233.08 | 68.80 % |
| 2003 | 341.85 | 46.67 % |
| 2004 | 383.56 | 12.20 % |
| 2005 | 336.34 | -12.31 % |
| 2006 | 340.90 | 1.35 % |
| 2007 | 482.19 | 41.45 % |
| 2008 | 562.21 | 16.60 % |
| 2009 | 700.58 | 24.61 % |
| 2010 | 786.11 | 12.21 % |
| 2011 | 1,053.09 | 33.96 % |
|
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