|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 1.94 | NA |
| 1987 | 3.32 | 70.87 % |
| 1988 | 3.63 | 9.44 % |
| 1989 | 3.86 | 6.29 % |
| 1990 | 1.59 | -58.72 % |
| 1991 | 1.64 | 2.56 % |
| 1992 | 2.61 | 59.56 % |
| 1993 | 2.27 | -13.04 % |
| 1994 | 1.98 | -12.61 % |
| 1995 | 3.42 | 72.74 % |
| 1996 | 4.01 | 17.12 % |
| 1997 | 4.28 | 6.63 % |
| 1998 | 4.39 | 2.74 % |
| 1999 | 5.19 | 18.14 % |
| 2000 | 5.01 | -3.41 % |
| 2001 | 5.50 | 9.68 % |
| 2002 | 5.93 | 7.77 % |
| 2003 | 6.21 | 4.83 % |
| 2004 | 6.38 | 2.68 % |
| 2005 | 6.40 | 0.27 % |
| 2006 | 6.54 | 2.24 % |
| 2007 | 6.52 | -0.31 % |
| 2008 | 8.46 | 29.78 % |
| 2009 | 7.83 | -7.49 % |
| 2010 | 9.18 | 17.23 % |
|
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