Frequencies for first 10,000 rows of occp_cod_num variable in demo2010q1 dataset :

                occp_cod_num |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                 CN Consumer |      3,537       35.37       35.37
                   LW Lawyer |        362        3.62       38.99
                MD Physician |      2,507       25.07       64.06
OT Other health-professional |      2,096       20.96       85.02
               PH Pharmacist |        517        5.17       90.19
                           . |        981        9.81      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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