Frequencies for first 10,000 rows of digsc23d variable in nhamcsopd2002 dataset :

diag/screen |
    service |
write-in #2 |
  - 3 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,824       98.24       98.24
        389 |          2        0.02       98.26
        751 |          1        0.01       98.27
        753 |         10        0.10       98.37
        822 |          1        0.01       98.38
        861 |         11        0.11       98.49
        887 |         10        0.10       98.59
        891 |          8        0.08       98.67
        892 |          5        0.05       98.72
        893 |         52        0.52       99.24
        895 |         12        0.12       99.36
        905 |         12        0.12       99.48
        909 |          1        0.01       99.49
        913 |          1        0.01       99.50
        914 |          1        0.01       99.51
        930 |          3        0.03       99.54
        935 |          1        0.01       99.55
        950 |         34        0.34       99.89
        952 |          1        0.01       99.90
        954 |          2        0.02       99.92
        992 |          3        0.03       99.95
        999 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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