|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .41 | NA |
| 1987 | .65 | 58.66 % |
| 1988 | 2.33 | 260.61 % |
| 1989 | 2.39 | 2.64 % |
| 1990 | 3.74 | 56.16 % |
| 1991 | 4.80 | 28.34 % |
| 1992 | 5.99 | 24.79 % |
| 1993 | 5.71 | -4.70 % |
| 1994 | 7.90 | 38.39 % |
| 1995 | 8.54 | 8.11 % |
| 1996 | 15.37 | 79.97 % |
| 1997 | 16.21 | 5.44 % |
| 1998 | 16.46 | 1.57 % |
| 1999 | 16.59 | 0.77 % |
| 2000 | 21.01 | 26.66 % |
| 2001 | 16.15 | -23.15 % |
| 2002 | 19.96 | 23.59 % |
| 2003 | 18.81 | -5.73 % |
| 2004 | 17.02 | -9.54 % |
| 2005 | 19.42 | 14.09 % |
| 2006 | 23.04 | 18.66 % |
| 2007 | 30.92 | 34.21 % |
| 2008 | 28.63 | -7.40 % |
| 2009 | 24.47 | -14.54 % |
| 2010 | 25.49 | 4.16 % |
|
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