Frequencies for first 10,000 rows of ncmed1 variable in namcs2011 dataset :

      Was medication 1 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        Blank |        165        1.65        1.65
               Not applicable |      2,070       20.70       22.35
                          New |      3,721       37.21       59.56
                    Continued |      4,044       40.44      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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