Frequencies for first 10,000 rows of occp_cod_num variable in demo2011q2 dataset :

                occp_cod_num |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                 CN Consumer |      4,209       42.09       42.09
                   LW Lawyer |        527        5.27       47.36
                MD Physician |      2,664       26.64       74.00
OT Other health-professional |      1,954       19.54       93.54
               PH Pharmacist |        402        4.02       97.56
                           . |        244        2.44      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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