|
| year | imports | change |
| 1980 | 4.41 | NA |
| 1981 | 4.41 | 0.00 % |
| 1982 | 4.41 | 0.00 % |
| 1983 | 4.41 | 0.00 % |
| 1984 | 4.41 | 0.00 % |
| 1985 | 6.61 | 50.00 % |
| 1986 | 8.82 | 33.33 % |
| 1987 | 8.82 | 0.00 % |
| 1988 | 9.92 | 12.50 % |
| 1989 | 9.92 | 0.00 % |
| 1990 | 8.82 | -11.11 % |
| 1991 | 11.93 | 35.32 % |
| 1992 | 8.82 | -26.10 % |
| 1993 | 8.82 | 0.00 % |
| 1994 | 7.72 | -12.50 % |
| 1995 | 7.72 | 0.00 % |
| 1996 | 7.72 | 0.00 % |
| 1997 | 7.72 | 0.00 % |
| 1998 | 7.72 | 0.00 % |
| 1999 | 5.51 | -28.57 % |
| 2000 | 5.51 | 0.00 % |
| 2001 | | NA |
| 2002 | | NA |
| 2003 | | NA |
| 2004 | | NA |
| 2005 | | NA |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | 3.31 | NA |
| 2009 | | NA |
| 2010 | | NA |
| 2011 | | NA |
|
|