Frequencies for first 10,000 rows of ncmed4 variable in namcs2012 dataset :

      Is Medication #4 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        Blank |         34        0.34        0.34
               Not applicable |      7,470       74.70       75.04
                          New |        346        3.46       78.50
                    Continued |      2,150       21.50      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016