Frequencies for first 10,000 rows of therpr2r variable in nhamcsopd2000 dataset :

      other |
  ther/prev |
  serv #2 - |
    numeric |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,969       99.69       99.69
       5794 |          1        0.01       99.70
       8628 |          2        0.02       99.72
       9149 |          1        0.01       99.73
       9353 |          1        0.01       99.74
       9357 |          4        0.04       99.78
       9359 |          2        0.02       99.80
       9381 |         12        0.12       99.92
       9445 |          2        0.02       99.94
       9449 |          1        0.01       99.95
       9511 |          1        0.01       99.96
       9541 |          1        0.01       99.97
       9639 |          1        0.01       99.98
       9659 |          1        0.01       99.99
       9903 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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