|
| year | imports | change |
| 1980 | 163.14 | NA |
| 1981 | 169.76 | 4.05 % |
| 1982 | 209.44 | 23.38 % |
| 1983 | 160.94 | -23.16 % |
| 1984 | 181.88 | 13.01 % |
| 1985 | 209.44 | 15.15 % |
| 1986 | 199.52 | -4.74 % |
| 1987 | 186.29 | -6.63 % |
| 1988 | 177.47 | -4.73 % |
| 1989 | 309.75 | 74.53 % |
| 1990 | 239.20 | -22.78 % |
| 1991 | 125.66 | -47.47 % |
| 1992 | 73.97 | -41.14 % |
| 1993 | 92.70 | 25.34 % |
| 1994 | 118.50 | 27.82 % |
| 1995 | 108.47 | -8.47 % |
| 1996 | 18.96 | -82.52 % |
| 1997 | 38.14 | 101.16 % |
| 1998 | 45.08 | 18.21 % |
| 1999 | 50.16 | 11.25 % |
| 2000 | 45.08 | -10.11 % |
| 2001 | 28.11 | -37.65 % |
| 2002 | 60.30 | 114.51 % |
| 2003 | 42.82 | -28.98 % |
| 2004 | 41.69 | -2.65 % |
| 2005 | 36.56 | -12.30 % |
| 2006 | 40.79 | 11.55 % |
| 2007 | 44.58 | 9.30 % |
| 2008 | 39.41 | -11.60 % |
| 2009 | 30.47 | -22.69 % |
| 2010 | 26.50 | -13.02 % |
| 2011 | 26.89 | 1.46 % |
|
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