Week ending Rank Streak
September 4, 2007 18 1
September 8, 2007 21 2
October 20, 2007 4 3
October 27, 2007 1 4
November 3, 2007 2 5
May 3, 2008 25 6
May 17, 2008 9 7
May 24, 2008 14 8
May 31, 2008 16 9
June 7, 2008 15 10
June 14, 2008 12 11
August 9, 2008 10 12
December 20, 2008 8 13
January 24, 2009 4 14
January 31, 2009 3 15
August 22, 2009 16 16
December 19, 2009 3 17
January 16, 2010 13 18