Frequencies for first 10,000 rows of ncmed2 variable in namcs2011 dataset :

      Was medication 2 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        Blank |        129        1.29        1.29
               Not applicable |      4,410       44.10       45.39
                          New |      1,966       19.66       65.05
                    Continued |      3,495       34.95      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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