|
| year | imports | change |
| 1980 | 626.11 | NA |
| 1981 | 351.64 | -43.84 % |
| 1982 | 625.01 | 77.74 % |
| 1983 | 1,609.38 | 157.50 % |
| 1984 | 2,128.56 | 32.26 % |
| 1985 | 2,307.14 | 8.39 % |
| 1986 | 1,968.73 | -14.67 % |
| 1987 | 2,029.36 | 3.08 % |
| 1988 | 1,690.95 | -16.68 % |
| 1989 | 1,360.25 | -19.56 % |
| 1990 | 1,556.46 | 14.42 % |
| 1991 | 1,579.61 | 1.49 % |
| 1992 | 2,374.38 | 50.31 % |
| 1993 | 1,496.94 | -36.95 % |
| 1994 | 1,663.39 | 11.12 % |
| 1995 | 1,565.28 | -5.90 % |
| 1996 | 1,838.66 | 17.46 % |
| 1997 | 1,360.25 | -26.02 % |
| 1998 | 1,516.78 | 11.51 % |
| 1999 | 1,327.18 | -12.50 % |
| 2000 | 1,373.48 | 3.49 % |
| 2001 | 1,506.86 | 9.71 % |
| 2002 | 1,095.70 | -27.29 % |
| 2003 | 827.84 | -24.45 % |
| 2004 | 901.69 | 8.92 % |
| 2005 | 716.50 | -20.54 % |
| 2006 | 425.49 | -40.62 % |
| 2007 | 675.72 | 58.81 % |
| 2008 | 747.37 | 10.60 % |
| 2009 | 328.49 | -56.05 % |
| 2010 | 718.71 | 118.79 % |
| 2011 | 595.25 | -17.18 % |
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