17H Max.
          From: 2018/04/01 to 2018/07/31
            +---+---+---+---+---+---+---+
            |Mon|Tue|Wed|Thu|Fri|Sat|Sun|
          +-+---+---+---+---+---+---+---+
          |1| 14|  0| 15|  1| 14|  1|  0|
          +-+---+---+---+---+---+---+---+
          |2| 15|  8|  1|  2|  1|  0|  0|
          +-+---+---+---+---+---+---+---+
          |3|  1| 12| 14|  2|  1|  0|  0|
          +-+---+---+---+---+---+---+---+
          |4|  0| 12|  5|  3| 14|  0|  0|
          +-+---+---+---+---+---+---+---+
          |5| 12| 13|  6| 13| 14|  0|  0|
          +-+---+---+---+---+---+---+---+
          |6|  8|  8|  7|  9| 14|  0|  0|
          +-+---+---+---+---+---+---+---+