Frequencies for first 10,000 rows of dose_freq variable in drug2014q4 dataset :

   Code for |
  Frequency |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,309       63.09       63.09
        /hr |          1        0.01       63.10
     /month |         99        0.99       64.09
        /wk |        278        2.78       66.87
        /yr |          9        0.09       66.96
         1X |          9        0.09       67.05
        BID |        705        7.05       74.10
        BIW |         16        0.16       74.26
       Q12H |         14        0.14       74.40
       Q28D |          1        0.01       74.41
        Q3W |         28        0.28       74.69
        Q4H |          3        0.03       74.72
        Q6H |          7        0.07       74.79
        Q8H |          9        0.09       74.88
         QD |      2,158       21.58       96.46
        QID |         51        0.51       96.97
        QOD |         23        0.23       97.20
        QOW |         52        0.52       97.72
         QW |          3        0.03       97.75
        TID |        155        1.55       99.30
        TIW |         70        0.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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