15H Max.
          From: 2016/09/01 to 2017/01/31
            +---+---+---+---+---+---+---+
            |Mon|Tue|Wed|Thu|Fri|Sat|Sun|
          +-+---+---+---+---+---+---+---+
          |1| 14|  1|  0|  1|  6|  0|  0|
          +-+---+---+---+---+---+---+---+
          |2|  5|  7|  1|  1| 14|  1|  0|
          +-+---+---+---+---+---+---+---+
          |3| 15|  6| 15| 14| 14|  1|  0|
          +-+---+---+---+---+---+---+---+
          |4| 10|  4| 15| 14| 14|  1|  0|
          +-+---+---+---+---+---+---+---+
          |5| 13|  6| 15| 11| 14|  0|  0|
          +-+---+---+---+---+---+---+---+
          |6|  5|  3| 15|  3| 13|  0|  0|
          +-+---+---+---+---+---+---+---+