19H Max.
          From: 2019/04/01 to 2019/07/31
            +---+---+---+---+---+---+---+
            |Mon|Tue|Wed|Thu|Fri|Sat|Sun|
          +-+---+---+---+---+---+---+---+
          |1| 15|  0|  0|  2|  1|  0|  0|
          +-+---+---+---+---+---+---+---+
          |2| 15|  9|  4|  6|  1|  0|  0|
          +-+---+---+---+---+---+---+---+
          |3|  1|  9|  4|  2|  1|  0|  1|
          +-+---+---+---+---+---+---+---+
          |4|  5|  8|  4|  5|  1|  0|  1|
          +-+---+---+---+---+---+---+---+
          |5| 15| 10|  2|  2|  0|  0|  0|
          +-+---+---+---+---+---+---+---+
          |6|  9|  5|  3|  3|  0|  0|  0|
          +-+---+---+---+---+---+---+---+