|
| year | imports | change |
| 1980 | 5,557.85 | NA |
| 1981 | 5,005.60 | -9.94 % |
| 1982 | 4,797.26 | -4.16 % |
| 1983 | 6,264.44 | 30.58 % |
| 1984 | 8,417.25 | 34.37 % |
| 1985 | 8,979.43 | 6.68 % |
| 1986 | 9,408.23 | 4.78 % |
| 1987 | 11,446.40 | 21.66 % |
| 1988 | 11,167.52 | -2.44 % |
| 1989 | 11,908.27 | 6.63 % |
| 1990 | 11,816.78 | -0.77 % |
| 1991 | 13,041.45 | 10.36 % |
| 1992 | 12,552.02 | -3.75 % |
| 1993 | 13,375.45 | 6.56 % |
| 1994 | 14,108.48 | 5.48 % |
| 1995 | 14,955.06 | 6.00 % |
| 1996 | 16,052.96 | 7.34 % |
| 1997 | 16,083.83 | 0.19 % |
| 1998 | 16,084.93 | 0.01 % |
| 1999 | 15,349.69 | -4.57 % |
| 2000 | 16,364.91 | 6.61 % |
| 2001 | 16,102.56 | -1.60 % |
| 2002 | 16,640.49 | 3.34 % |
| 2003 | 17,222.51 | 3.50 % |
| 2004 | 17,776.97 | 3.22 % |
| 2005 | 17,021.34 | -4.25 % |
| 2006 | 16,423.89 | -3.51 % |
| 2007 | 18,122.44 | 10.34 % |
| 2008 | 18,976.29 | 4.71 % |
| 2009 | 14,218.05 | -25.07 % |
| 2010 | 19,522.35 | 37.31 % |
| 2011 | 21,827.43 | 11.81 % |
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