Frequencies for first 10,000 rows of diagsc23 variable in namcs1997 dataset :

      other |
diag/screen |
 service #2 |
    - 3 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,901       99.01       99.01
        033 |          1        0.01       99.02
        162 |         11        0.11       99.13
        291 |          2        0.02       99.15
        372 |          1        0.01       99.16
        429 |          1        0.01       99.17
        451 |          1        0.01       99.18
        452 |          2        0.02       99.20
        753 |          7        0.07       99.27
        885 |          1        0.01       99.28
        891 |         12        0.12       99.40
        892 |          2        0.02       99.42
        893 |         30        0.30       99.72
        894 |          3        0.03       99.75
        895 |          2        0.02       99.77
        904 |          1        0.01       99.78
        913 |          1        0.01       99.79
        914 |          2        0.02       99.81
        915 |          2        0.02       99.83
        919 |          1        0.01       99.84
        930 |          3        0.03       99.87
        941 |          1        0.01       99.88
        944 |          1        0.01       99.89
        950 |          2        0.02       99.91
        951 |          6        0.06       99.97
        954 |          2        0.02       99.99
        999 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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