Frequencies for first 10,000 rows of occp_cod_num variable in demo2011q4 dataset :

                occp_cod_num |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                 CN Consumer |      3,877       38.77       38.77
                   LW Lawyer |        362        3.62       42.39
                MD Physician |      2,723       27.23       69.62
OT Other health-professional |      2,010       20.10       89.72
               PH Pharmacist |        644        6.44       96.16
                           . |        384        3.84      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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