Frequencies for first 10,000 rows of digsc22d variable in nhamcsopd2003 dataset :

diag/screen |
    service |
write-in #2 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,834       98.34       98.34
         19 |          1        0.01       98.35
         20 |          1        0.01       98.36
         28 |          1        0.01       98.37
         38 |          1        0.01       98.38
         68 |          1        0.01       98.39
         75 |         17        0.17       98.56
         86 |         10        0.10       98.66
         88 |          4        0.04       98.70
         89 |         58        0.58       99.28
         90 |          2        0.02       99.30
         91 |          4        0.04       99.34
         93 |         18        0.18       99.52
         94 |          2        0.02       99.54
         95 |          8        0.08       99.62
         97 |          1        0.01       99.63
         99 |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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