Frequencies for first 10,000 rows of occp_cod_num variable in demo2008q2 dataset :

                occp_cod_num |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                 CN Consumer |      3,325       33.25       33.25
                   LW Lawyer |        236        2.36       35.61
                MD Physician |      2,775       27.75       63.36
OT Other health-professional |      1,806       18.06       81.42
               PH Pharmacist |        612        6.12       87.54
                           . |      1,246       12.46      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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