Frequencies for first 10,000 rows of totdiag variable in namcs2005 dataset :

      total |
diag/screen |
        ing |
   services |
 ordered or |
   provided |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        705        7.05        7.05
          1 |        728        7.28       14.33
          2 |      1,577       15.77       30.10
          3 |      2,192       21.92       52.02
          4 |      2,022       20.22       72.24
          5 |      1,042       10.42       82.66
          6 |        581        5.81       88.47
          7 |        377        3.77       92.24
          8 |        225        2.25       94.49
          9 |        178        1.78       96.27
         10 |        118        1.18       97.45
         11 |         75        0.75       98.20
         12 |         45        0.45       98.65
         13 |         22        0.22       98.87
         14 |         22        0.22       99.09
         15 |         15        0.15       99.24
         16 |          7        0.07       99.31
         17 |          4        0.04       99.35
         99 |         65        0.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016