A Simple Plot 
                  High Values of the Dow Jones                 1
                       Industrial Average
                       from 1954 to 1994

     Plot of High*Year.  Legend: A = 1 obs, B = 2 obs, etc.

 4000 +                                              A
      |                                             A
      |                                           AA
 High |                                          A
      |                                       A A
      |                                        A
 2000 +                                      A
      |                                     A
      |                                   AA
      |                AAAAAAAAAAAAAAAAAAA
      |        AAAAAAAA
      |      AA
    0 +
      ---+---------+---------+---------+---------+---------+--
       1950      1960      1970      1980      1990      2000

                                Year