|
| year | imports | change |
| 1984 | 1,147.66 | NA |
| 1985 | 1,141.68 | -0.52 % |
| 1986 | 1,514.54 | 32.66 % |
| 1987 | 1,580.15 | 4.33 % |
| 1988 | 1,737.16 | 9.94 % |
| 1989 | 1,792.97 | 3.21 % |
| 1990 | 1,782.19 | -0.60 % |
| 1991 | 1,949.07 | 9.36 % |
| 1992 | 2,061.04 | 5.74 % |
| 1993 | 2,160.18 | 4.81 % |
| 1994 | 2,373.45 | 9.87 % |
| 1995 | 2,567.03 | 8.16 % |
| 1996 | 2,585.09 | 0.70 % |
| 1997 | 2,790.24 | 7.94 % |
| 1998 | 2,765.37 | -0.89 % |
| 1999 | 3,221.92 | 16.51 % |
| 2000 | 3,022.59 | -6.19 % |
| 2001 | 3,141.81 | 3.94 % |
| 2002 | 3,184.75 | 1.37 % |
| 2003 | 3,354.92 | 5.34 % |
| 2004 | 3,604.13 | 7.43 % |
| 2005 | 3,638.34 | 0.95 % |
| 2006 | 3,857.00 | 6.01 % |
| 2007 | 3,960.34 | 2.68 % |
| 2008 | 1,278.33 | -67.72 % |
| 2009 | 6,060.97 | 374.13 % |
| 2010 | 6,161.82 | 1.66 % |
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