Frequencies for first 10,000 rows of diagsc23 variable in nhamcsed2000 dataset :

      other |
diag/screen |
 service #2 |
    - 3 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,957       99.57       99.57
        389 |          1        0.01       99.58
        452 |          1        0.01       99.59
        753 |          1        0.01       99.60
        889 |          2        0.02       99.62
        890 |          1        0.01       99.63
        891 |          5        0.05       99.68
        893 |          7        0.07       99.75
        896 |          4        0.04       99.79
        897 |          1        0.01       99.80
        902 |          1        0.01       99.81
        903 |          3        0.03       99.84
        904 |          2        0.02       99.86
        909 |          3        0.03       99.89
        919 |          5        0.05       99.94
        939 |          1        0.01       99.95
        944 |          1        0.01       99.96
        990 |          1        0.01       99.97
        999 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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