|
| year | imports | change |
| 1984 | 40.21 | NA |
| 1985 | 41.63 | 3.53 % |
| 1986 | 395.16 | 849.16 % |
| 1987 | 550.56 | 39.32 % |
| 1988 | 654.01 | 18.79 % |
| 1989 | 751.73 | 14.94 % |
| 1990 | 716.91 | -4.63 % |
| 1991 | 747.57 | 4.28 % |
| 1992 | 909.60 | 21.67 % |
| 1993 | 1,105.40 | 21.53 % |
| 1994 | 1,159.60 | 4.90 % |
| 1995 | 1,312.25 | 13.16 % |
| 1996 | 1,262.60 | -3.78 % |
| 1997 | 1,215.47 | -3.73 % |
| 1998 | 1,099.13 | -9.57 % |
| 1999 | 1,036.88 | -5.66 % |
| 2000 | 752.28 | -27.45 % |
| 2001 | 713.73 | -5.12 % |
| 2002 | 756.32 | 5.97 % |
| 2003 | 887.22 | 17.31 % |
| 2004 | 950.25 | 7.10 % |
| 2005 | 823.09 | -13.38 % |
| 2006 | 859.48 | 4.42 % |
| 2007 | 1,047.69 | 21.90 % |
| 2008 | 1,201.70 | 14.70 % |
| 2009 | 1,263.08 | 5.11 % |
| 2010 | 1,268.39 | 0.42 % |
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