|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | .20 | NA |
| 1991 | .20 | 0.00 % |
| 1992 | .20 | -0.27 % |
| 1993 | .20 | 0.27 % |
| 1994 | .20 | 0.00 % |
| 1995 | .20 | 0.00 % |
| 1996 | .20 | -0.27 % |
| 1997 | .20 | 0.27 % |
| 1998 | .20 | 0.00 % |
| 1999 | 2.43 | 1,090.02 % |
| 2000 | 4.50 | 85.21 % |
| 2001 | 1.19 | -73.68 % |
| 2002 | 1.14 | -3.45 % |
| 2003 | 1.08 | -5.36 % |
| 2004 | 1.00 | -7.80 % |
| 2005 | .94 | -5.87 % |
| 2006 | 1.29 | 36.96 % |
| 2007 | .88 | -31.75 % |
| 2008 | 1.04 | 18.60 % |
| 2009 | 1.31 | 25.49 % |
| 2010 | .41 | -68.75 % |
|
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