Week ending Rank Streak
September 4, 2007 15 1
September 8, 2007 18 2
September 15, 2007 25 3
September 22, 2007 2 4
September 29, 2007 20 5
October 6, 2007 23 6
October 13, 2007 25 7
January 24, 2009 3 8
January 31, 2009 1 9
August 22, 2009 14 10
December 19, 2009 4 11
January 16, 2010 7 12