Year % of commercial service imports 1998 18.744464127546507 1999 20.671211326691136 2000 28.081979091191386 2001 23.524355300859597 2002 32.17874543239951 2003 28.749140893470795 2004 39.92600551630677 2005 40.55852019197727 2006 40.369065117856344 2007 36.400624416826965 2008 43.95617596664025 2009 52.41727525270383 2010 56.827257935976675 2011 50.907655472838954