|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 3.02 | NA |
| 1987 | 7.05 | 133.65 % |
| 1988 | 13.56 | 92.19 % |
| 1989 | 13.32 | -1.74 % |
| 1990 | 2.50 | -81.23 % |
| 1991 | 16.91 | 576.58 % |
| 1992 | 12.81 | -24.26 % |
| 1993 | 20.15 | 57.31 % |
| 1994 | 24.63 | 22.24 % |
| 1995 | 21.18 | -14.00 % |
| 1996 | 26.79 | 26.44 % |
| 1997 | 31.58 | 17.92 % |
| 1998 | 28.98 | -8.24 % |
| 1999 | 27.83 | -3.99 % |
| 2000 | 27.44 | -1.39 % |
| 2001 | 31.73 | 15.63 % |
| 2002 | 28.88 | -8.97 % |
| 2003 | 23.45 | -18.83 % |
| 2004 | 25.17 | 7.33 % |
| 2005 | 24.82 | -1.39 % |
| 2006 | 18.98 | -23.53 % |
| 2007 | 19.54 | 2.98 % |
| 2008 | 22.15 | 13.35 % |
| 2009 | 25.95 | 17.13 % |
| 2010 | 24.74 | -4.64 % |
|
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