|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 1.43 | NA |
| 1987 | 6.73 | 371.38 % |
| 1988 | 2.60 | -61.32 % |
| 1989 | 5.12 | 96.86 % |
| 1990 | 23.13 | 351.70 % |
| 1991 | 44.60 | 92.81 % |
| 1992 | 54.57 | 22.34 % |
| 1993 | 57.72 | 5.79 % |
| 1994 | 60.72 | 5.20 % |
| 1995 | 64.54 | 6.29 % |
| 1996 | 47.11 | -27.00 % |
| 1997 | 16.30 | -65.41 % |
| 1998 | 11.40 | -30.08 % |
| 1999 | 16.01 | 40.47 % |
| 2000 | 10.66 | -33.39 % |
| 2001 | | NA |
| 2002 | | NA |
| 2003 | 3.64 | NA |
| 2004 | 1.26 | -65.45 % |
| 2005 | 7.54 | 499.92 % |
| 2006 | 18.96 | 151.57 % |
| 2007 | 9.20 | -51.49 % |
| 2008 | 4.80 | -47.82 % |
| 2009 | 1.43 | -70.20 % |
| 2010 | 1.73 | 21.20 % |
|
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