+-----+-------+--------+-------+--------+-------+--------+-------+
     |     +       +        +       +        +       +        +       +
  24 *+                                                              ++ 24
     |*                        Last 24 Hours                          |
  23 ++*                                                             ++ 23
     |  *                                                             |
  22 ++  *                                                           ++ 22
     |    *                                                           |
     |    *                                                           |
  21 ++    *                                                         ++ 21
     |      *                                                     *****
  20 ++     *                                                  ***   ++ 20
     |       ***                                           ****       |
     |          ***                                      **           |
  19 ++            ******                            ****            ++ 19
     |                   *** *************         **                 |
  18 ++                     *             *****  **                  ++ 18
     |                                         **                     |
     |     +       +        +       +        +       +        +       +
  17 ++----+-------+--------+-------+--------+-------+--------+------++ 17
                        Midnight                            Noon