Frequencies for first 10,000 rows of dose_freq variable in drug2013q1 dataset :

   Code for |
  Frequency |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,979       69.79       69.79
     /cycle |          4        0.04       69.83
     /month |        192        1.92       71.75
        /wk |        322        3.22       74.97
        /yr |          5        0.05       75.02
         1X |         44        0.44       75.46
        BID |        486        4.86       80.32
        BIW |         16        0.16       80.48
         HS |          1        0.01       80.49
        PRN |          1        0.01       80.50
       Q12H |         17        0.17       80.67
        Q2H |          1        0.01       80.68
        Q2W |          1        0.01       80.69
        Q3H |          1        0.01       80.70
        Q3W |         32        0.32       81.02
        Q4H |          5        0.05       81.07
        Q6H |          9        0.09       81.16
        Q8H |          9        0.09       81.25
         QD |      1,528       15.28       96.53
        QID |         39        0.39       96.92
        QOD |         22        0.22       97.14
        QOW |        126        1.26       98.40
         QW |          4        0.04       98.44
        TID |        137        1.37       99.81
        TIW |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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