Frequencies for first 10,000 rows of ncmed1 variable in namcs2008 dataset :

      was medication 1 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        216        2.16        2.16
               not applicable |      1,878       18.78       20.94
                          new |      4,007       40.07       61.01
                    continued |      3,899       38.99      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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