Frequencies for first 10,000 rows of dose_freq variable in drug2015q3 dataset :

   Code for |
  Frequency |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,206       62.06       62.06
     /cycle |          3        0.03       62.09
        /hr |         10        0.10       62.19
       /min |          6        0.06       62.25
     /month |        121        1.21       63.46
        /wk |        311        3.11       66.57
        /yr |          1        0.01       66.58
         1X |         10        0.10       66.68
        BID |        592        5.92       72.60
        BIW |         26        0.26       72.86
       Q12H |         16        0.16       73.02
        Q2H |          2        0.02       73.04
        Q3H |          1        0.01       73.05
        Q3W |         52        0.52       73.57
        Q4H |         10        0.10       73.67
        Q6H |          6        0.06       73.73
        Q8H |         20        0.20       73.93
         QD |      2,218       22.18       96.11
        QID |         47        0.47       96.58
        QOD |         20        0.20       96.78
        QOW |        137        1.37       98.15
        TID |        174        1.74       99.89
        TIW |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2017