Frequencies for first 10,000 rows of occp_cod_num variable in demo2012q2 dataset :

                occp_cod_num |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                 CN Consumer |      4,463       44.63       44.63
                   LW Lawyer |        212        2.12       46.75
                MD Physician |      2,907       29.07       75.82
OT Other health-professional |      1,818       18.18       94.00
               PH Pharmacist |        421        4.21       98.21
                           . |        179        1.79      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015