Year current LCU 1987 2700 1988 2800 1989 3100 1990 3400 1991 6600 1993 1612000 1997 2900963100 1998 3946943300 1999 5249887800 2000 4686785300 2001 7118397000 2002 7797811600 2003 11437008600 2004 14631545000 2005 15031067300 2006 14122894800 2007 17422241900 2008 37612554700 2009 39344148600 2010 41226456500 2011 55285171600 2012 68367686900