Frequencies for first 10,000 rows of ncmed7 variable in namcs2011 dataset :

      Was medication 7 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        Blank |         33        0.33        0.33
               Not applicable |      8,681       86.81       87.14
                          New |        112        1.12       88.26
                    Continued |      1,174       11.74      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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