That data is such a minor snippet though- February 7th-through February 13th (not even a full week). How is 6 days worth of mining relevant to performance anywhere? Need at least one whole months worth of data to gather what is really happening currently. Case in point, BC monster solved one block february 6th and one february 15th, Im sure even more for the bigger pools as well.
February 7th through 13th is a full week. Feb 7, 8, 9, 10, 11, 12, 13. 7 days. And as stated in the post: Scroll down and the very next chart is 1 month, then 6 months, and 12 months.