|
| year | imports | change |
| 1980 | 88.18 | NA |
| 1981 | 200.98 | 127.91 % |
| 1982 | 151.02 | -24.86 % |
| 1983 | 408.36 | 170.41 % |
| 1984 | 449.12 | 9.98 % |
| 1985 | 587.25 | 30.75 % |
| 1986 | 444.88 | -24.24 % |
| 1987 | 542.34 | 21.91 % |
| 1988 | 604.25 | 11.42 % |
| 1989 | 1,984.50 | 228.43 % |
| 1990 | 2,610.27 | 31.53 % |
| 1991 | 2,352.33 | -9.88 % |
| 1992 | 2,483.51 | 5.58 % |
| 1993 | 1,947.78 | -21.57 % |
| 1994 | 2,272.97 | 16.69 % |
| 1995 | 2,198.01 | -3.30 % |
| 1996 | 3,096.39 | 40.87 % |
| 1997 | 2,394.22 | -22.68 % |
| 1998 | 2,407.45 | 0.55 % |
| 1999 | 2,080.06 | -13.60 % |
| 2000 | 3,060.02 | 47.11 % |
| 2001 | 4,659.47 | 52.27 % |
| 2002 | 6,018.62 | 29.17 % |
| 2003 | 8,296.00 | 37.84 % |
| 2004 | 9,525.63 | 14.82 % |
| 2005 | 11,182.57 | 17.39 % |
| 2006 | 11,993.92 | 7.26 % |
| 2007 | 14,731.29 | 22.82 % |
| 2008 | 17,004.26 | 15.43 % |
| 2009 | 15,958.16 | -6.15 % |
| 2010 | 22,858.63 | 43.24 % |
| 2011 | 23,689.77 | 3.64 % |
|
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