Frequencies for first 10,000 rows of dose_freq variable in drug2017q1 dataset :

   Code for |
  Frequency |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,265       62.65       62.65
     /cycle |         21        0.21       62.86
        /hr |          2        0.02       62.88
       /min |          1        0.01       62.89
     /month |        115        1.15       64.04
        /wk |        277        2.77       66.81
        /yr |          5        0.05       66.86
         1X |          7        0.07       66.93
        BID |        609        6.09       73.02
        BIW |         14        0.14       73.16
       Q12H |          7        0.07       73.23
        Q3W |         82        0.82       74.05
        Q4H |          2        0.02       74.07
        Q6H |          5        0.05       74.12
        Q8H |          9        0.09       74.21
         QD |      2,218       22.18       96.39
        QID |         44        0.44       96.83
        QOD |         30        0.30       97.13
        QOW |         93        0.93       98.06
        TID |        179        1.79       99.85
        TIW |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Sep 2017