|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .10 | NA |
| 1987 | .10 | 0.00 % |
| 1988 | .13 | 32.97 % |
| 1989 | .13 | 0.28 % |
| 1990 | .13 | 0.00 % |
| 1991 | .13 | 0.00 % |
| 1992 | .13 | -0.28 % |
| 1993 | .13 | 0.28 % |
| 1994 | .13 | 0.00 % |
| 1995 | .13 | -0.28 % |
| 1996 | .16 | 25.00 % |
| 1997 | .16 | 0.28 % |
| 1998 | .16 | 0.00 % |
| 1999 | .16 | 0.00 % |
| 2000 | .19 | 19.67 % |
| 2001 | .19 | 0.27 % |
| 2002 | .22 | 16.67 % |
| 2003 | .22 | 0.00 % |
| 2004 | .25 | 13.97 % |
| 2005 | .25 | 0.28 % |
| 2006 | .25 | 0.00 % |
| 2007 | .25 | 0.00 % |
| 2008 | .32 | 25.00 % |
| 2009 | .41 | 30.00 % |
| 2010 | .41 | 0.00 % |
|
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