Frequencies for first 10,000 rows of totdiag variable in nhamcsopd2008 dataset :

            total |
   diag/screening |
 services ordered |
      or provided |      Freq.     Percent        Cum.
------------------+-----------------------------------
entire item blank |         70        0.70        0.70
                0 |        662        6.62        7.32
                1 |        984        9.84       17.16
                2 |      1,238       12.38       29.54
                3 |      1,817       18.17       47.71
                4 |      1,996       19.96       67.67
                5 |      1,396       13.96       81.63
                6 |        783        7.83       89.46
                7 |        400        4.00       93.46
                8 |        246        2.46       95.92
                9 |        159        1.59       97.51
               10 |        115        1.15       98.66
               11 |         41        0.41       99.07
               12 |         32        0.32       99.39
               13 |         16        0.16       99.55
               14 |         15        0.15       99.70
               15 |         11        0.11       99.81
               16 |          3        0.03       99.84
               17 |          6        0.06       99.90
               18 |          4        0.04       99.94
               19 |          5        0.05       99.99
               20 |          1        0.01      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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