The Chart Procedure
HBAR of population
population                                              Cum.              Cum.
 Midpoint                                         Freq  Freq  Percent  Percent
             |                                                                
   1250000   |**********************************    34    34    72.34    72.34
             |                                                                
   3750000   |****                                   4    38     8.51    80.85
             |                                                                
   6250000   |*****                                  5    43    10.64    91.49
             |                                                                
   8750000   |***                                    3    46     6.38    97.87
             |                                                                
  11250000   |                                       0    46     0.00    97.87
             |                                                                
  13750000   |*                                      1    47     2.13   100.00
             |                                                                
             -----+----+----+----+----+----+----                              
                  5    10   15   20   25   30                                 
                                                                              
                          Frequency                                           
HBAR of area
 area                                   Cum.              Cum.                
Midpoint                          Freq  Freq  Percent  Percent                
        |                                                                     
 7500   |***********************    45    45    95.74    95.74                
        |                                                                     
22500   |*                           1    46     2.13    97.87                
        |                                                                     
37500   |                            0    46     0.00    97.87                
        |                                                                     
52500   |                            0    46     0.00    97.87                
        |                                                                     
67500   |                            0    46     0.00    97.87                
        |                                                                     
82500   |*                           1    47     2.13   100.00                
        |                                                                     
        -----+----+----+----+---                                              
             10   20   30   40                                                
                                                                              
                Frequency                                                     
HBAR of density
density                               Cum.              Cum.                  
Midpoint                        Freq  Freq  Percent  Percent                  
          |                                                                   
      0   |*******************    38    38    80.85    80.85                  
          |                                                                   
   1200   |***                     5    43    10.64    91.49                  
          |                                                                   
   2400   |*                       1    44     2.13    93.62                  
          |                                                                   
   3600   |*                       1    45     2.13    95.74                  
          |                                                                   
   4800   |*                       1    46     2.13    97.87                  
          |                                                                   
   6000   |*                       1    47     2.13   100.00                  
          |                                                                   
          -----+----+----+----                                                
               10   20   30                                                   
                                                                              
                Frequency                                                     
VBAR of population
Frequency                                                                     
                                                                              
   |      *****                                                               
   |      *****                                                               
30 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
20 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
10 +      *****                                                               
   |      *****                                                               
   |      *****                 *****                                         
   |      *****      *****      *****      *****                              
   |      *****      *****      *****      *****                 *****        
   -------------------------------------------------------------------------  
         1250000    3750000    6250000    8750000   11250000   13750000       
                                                                              
                              population Midpoint                             
VBAR of area
Frequency                                                                     
                                                                              
   |      *****                                                               
   |      *****                                                               
40 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
30 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
20 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
10 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
   -------------------------------------------------------------------------  
           7500      22500      37500      52500      67500      82500        
                                                                              
                                 area Midpoint                                
VBAR of density
Frequency                                                                     
                                                                              
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
30 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
20 +      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
   |      *****                                                               
10 +      *****                                                               
   |      *****                                                               
   |      *****      *****                                                    
   |      *****      *****                                                    
   |      *****      *****      *****      *****      *****      *****        
   -------------------------------------------------------------------------  
            0         1200       2400       3600       4800       6000        
                                                                              
                                density Midpoint