Frequencies for first 10,000 rows of rx12v1c2 variable in nhamcsed2015 dataset 

  For RX12, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,972       99.72       99.72
        001 |          1        0.01       99.73
        040 |          9        0.09       99.82
        057 |          2        0.02       99.84
        081 |          1        0.01       99.85
        097 |          1        0.01       99.86
        105 |          1        0.01       99.87
        115 |          1        0.01       99.88
        122 |         10        0.10       99.98
        218 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017