15H Max.
          From: 2018/09/01 to 2019/01/31
            +---+---+---+---+---+---+---+
            |Mon|Tue|Wed|Thu|Fri|Sat|Sun|
          +-+---+---+---+---+---+---+---+
          |1|  4| 14|  1| 12|  0|  0|  0|
          +-+---+---+---+---+---+---+---+
          |2| 12| 11|  3| 13| 12|  0|  0|
          +-+---+---+---+---+---+---+---+
          |3|  2| 16| 15| 14| 12|  0|  0|
          +-+---+---+---+---+---+---+---+
          |4|  6|  6| 15| 12| 13|  0|  0|
          +-+---+---+---+---+---+---+---+
          |5|  1|  7| 16| 14| 11|  0|  0|
          +-+---+---+---+---+---+---+---+
          |6|  1| 11| 12|  3|  1|  0|  0|
          +-+---+---+---+---+---+---+---+