2008 February 190 k May 316 k
2007 February 388 k April 405 k June 233 k July 2,093 k September 392 k December 157 k
2006 February 1.7 m March 1.9 m April 2.9 m May 2.1 m December 1.0 m
2005 April 144 k June 640 k September 389 k October 1.5 m December 644 k