|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .06 | NA |
| 1987 | .07 | 8.23 % |
| 1988 | .06 | -7.85 % |
| 1989 | .04 | -33.16 % |
| 1990 | .06 | 50.01 % |
| 1991 | .06 | 0.00 % |
| 1992 | .06 | -0.27 % |
| 1993 | .06 | 0.27 % |
| 1994 | .06 | 0.00 % |
| 1995 | .06 | 0.00 % |
| 1996 | .06 | -0.27 % |
| 1997 | .06 | 0.27 % |
| 1998 | .06 | 0.00 % |
| 1999 | .06 | 0.00 % |
| 2000 | .06 | -0.27 % |
| 2001 | .06 | 0.27 % |
| 2002 | .08 | 33.34 % |
| 2003 | .08 | 0.00 % |
| 2004 | .06 | -25.20 % |
| 2005 | .08 | 33.70 % |
| 2006 | .06 | -25.00 % |
| 2007 | | NA |
| 2008 | .03 | NA |
| 2009 | .03 | 8.45 % |
| 2010 | .03 | -2.08 % |
|
|