+--------+-------+--------+--------+--------+-------+--------+-----+
    +        +       +        +        +        +       +        +     |
  0 ++                                                                ++ 0
    |                          Last 24 Hours                           |
    |                                                                  *
    |                                                                 *|
 -1 ++                                                               *++-1
    |                                                               *  |
    |                                                              *   |
 -2 ++                                                            *   ++-2
    |                                                            *     |
    |                                                           *      |
    |                                                          *       |
 -3 ***************    **********  *******                   **       ++-3
    |              ****          **            *********  ***          |
    |                                     *****         **             |
    |                                                                  |
 -4 ++                                                                ++-4
    +        +       +        +        +        +       +        +     |
    +--------+-------+--------+--------+--------+-------+--------+-----+
  Noon                             Midnight