18 ++-------+--------+--------+---------+--------+--------+--------+----++
     +        +        +        +         +        +        +        +     |
     |                                                                    **
     |  *********                 Last 24 Hours                         ** |
  16 +**         *                                                     *  ++
     *            *                                                    *   |
     |             *                                                  *    |
     |              *                                                 *    |
  14 ++              *                                               *    ++
     |                *                                             *      |
     |                *                                            *       |
  12 ++                *                                          *       ++
     |                  *                          *********    **         |
     |                   *                       **         ****           |
     |                   *      ****           **                          |
  10 ++                   ***  *    *    ******                           ++
     |                        *      * **                                  |
     |                       *        *                                    |
     +        +        +        +         +        +        +        +     |
   8 ++-------+--------+--------+---------+--------+--------+--------+----++
   Noon                               Midnight