|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .26 | NA |
| 1987 | .28 | 9.09 % |
| 1988 | .44 | 57.90 % |
| 1989 | .44 | 0.27 % |
| 1990 | .47 | 5.26 % |
| 1991 | .51 | 10.00 % |
| 1992 | .51 | -0.27 % |
| 1993 | .54 | 4.83 % |
| 1994 | .56 | 4.35 % |
| 1995 | .51 | -8.58 % |
| 1996 | .51 | 0.00 % |
| 1997 | .51 | 0.27 % |
| 1998 | .51 | 0.00 % |
| 1999 | .51 | 0.00 % |
| 2000 | .51 | -0.27 % |
| 2001 | .51 | 0.28 % |
| 2002 | .51 | 0.00 % |
| 2003 | .54 | 4.55 % |
| 2004 | .56 | 4.06 % |
| 2005 | .58 | 4.45 % |
| 2006 | .51 | -12.00 % |
| 2007 | .61 | 18.18 % |
| 2008 | .63 | 3.85 % |
| 2009 | .68 | 7.41 % |
| 2010 | .70 | 3.45 % |
|
|