January 2011 7.4-7.8
February 2011 -
March 2011 -
April 2011(5)7.4
May 2011 -(Estimate calculated 6.12-7.6)
June 2011 ~7.6
July 2011
August 2011
September 2011
October 2011
November 2011
December 2011
January 2011 7.4-7.8
February 2011 -
March 2011 -
April 2011(5)7.4
May 2011 -(Estimate calculated 6.12-7.6)
June 2011 ~7.6
July 2011
August 2011
September 2011
October 2011
November 2011
December 2011