|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 26.57 | NA |
| 1987 | 26.57 | 0.00 % |
| 1988 | 26.09 | -1.81 % |
| 1989 | 28.61 | 9.67 % |
| 1990 | 29.64 | 3.57 % |
| 1991 | 26.47 | -10.68 % |
| 1992 | 21.83 | -17.53 % |
| 1993 | 21.85 | 0.09 % |
| 1994 | 21.85 | 0.00 % |
| 1995 | 21.18 | -3.06 % |
| 1996 | 21.17 | -0.06 % |
| 1997 | 31.46 | 48.63 % |
| 1998 | 29.10 | -7.49 % |
| 1999 | 30.90 | 6.18 % |
| 2000 | 28.20 | -8.74 % |
| 2001 | 24.26 | -13.99 % |
| 2002 | 21.50 | -11.36 % |
| 2003 | 22.85 | 6.27 % |
| 2004 | 19.45 | -14.90 % |
| 2005 | 20.48 | 5.30 % |
| 2006 | 19.62 | -4.17 % |
| 2007 | 23.17 | 18.07 % |
| 2008 | 12.80 | -44.75 % |
| 2009 | | NA |
| 2010 | 1.39 | NA |
|
|