Frequencies for first 10,000 rows of diagsc33 variable in nhamcsed1993 dataset :

      other |
diag/screen |
 service #3 |
  - 3 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,877       98.77       98.77
        033 |          1        0.01       98.78
        753 |          1        0.01       98.79
        891 |          1        0.01       98.80
        892 |          3        0.03       98.83
        893 |         10        0.10       98.93
        895 |          7        0.07       99.00
        896 |          3        0.03       99.03
        902 |          1        0.01       99.04
        903 |          9        0.09       99.13
        904 |          5        0.05       99.18
        905 |         20        0.20       99.38
        908 |          1        0.01       99.39
        909 |          6        0.06       99.45
        913 |          9        0.09       99.54
        914 |         24        0.24       99.78
        919 |          6        0.06       99.84
        939 |          5        0.05       99.89
        940 |          1        0.01       99.90
        999 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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