18.5 +----------------------------------------------------------------+   
          |  +       +        +       +        +       +        +       +  |   
       18 |-+                                                            +-|   
          |                                                                |   
     17.5 |*+                       Last 24 Hours                        +-|   
          | ***                                                            |   
       17 |-+  **                                                        +-|   
          |      *                                                         |   
     16.5 |-+    *                                                       +-|   
          |       *                                                        |   
       16 |-+      **                    **                              +-|   
          |          ****               *  ******                          |   
     15.5 |-+            **        **  *         **                 ***  +-|   
          |                ****   *  **            *****************   ****|   
       15 |-+                  ** *                                      +-|   
          |                      *                                         |   
     14.5 |-+                                                            +-|   
          |                                                                |   
       14 |-++       +        +       +        +       +        +       ++-|   
          +----------------------------------------------------------------+   
                                    Noon                            Midnight