Frequencies for first 10,000 rows of ncmed2 variable in namcs2009 dataset :

      was medication 2 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        172        1.72        1.72
               not applicable |      4,373       43.73       45.45
                          new |      1,836       18.36       63.81
                    continued |      3,619       36.19      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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