Frequencies for first 10,000 rows of ncmed3 variable in namcs2007 dataset :

      was medication 3 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        153        1.53        1.53
               not applicable |      6,533       65.33       66.86
                          new |        833        8.33       75.19
                    continued |      2,481       24.81      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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