|
| year | imports | change |
| 1990 | 1,985.87 | NA |
| 1991 | 2,121.15 | 6.81 % |
| 1992 | 3,465.67 | 63.39 % |
| 1993 | 3,272.32 | -5.58 % |
| 1994 | 3,369.30 | 2.96 % |
| 1995 | 3,288.01 | -2.41 % |
| 1996 | 3,709.67 | 12.82 % |
| 1997 | 3,862.54 | 4.12 % |
| 1998 | 3,879.90 | 0.45 % |
| 1999 | 4,153.63 | 7.06 % |
| 2000 | 4,304.83 | 3.64 % |
| 2001 | 4,629.44 | 7.54 % |
| 2002 | 4,878.20 | 5.37 % |
| 2003 | 5,322.75 | 9.11 % |
| 2004 | 5,878.08 | 10.43 % |
| 2005 | 6,097.06 | 3.73 % |
| 2006 | 6,696.45 | 9.83 % |
| 2007 | 7,238.83 | 8.10 % |
| 2008 | 7,816.45 | 7.98 % |
| 2009 | 7,724.77 | -1.17 % |
| 2010 | 9,007.59 | 16.61 % |
| 2011 | 10,472.17 | 16.26 % |
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