Year, X,C
2000, 8559.4, 6830.4
2001, 8883.3, 7148.8
2002, 9060.1, 7439.2
2003, 9378.1, 7804.0
2004, 9937.2, 8285.1
2005, 10485.9, 8819.0
2006, 11268.1, 9322.7
2007, 11894.1, 9826.4
2008, 12238.8, 10129.9
2009, 12030.3, 10088.5