Frequencies for first 10,000 rows of occp_cod_num variable in demo2010q2 dataset :

                occp_cod_num |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                 CN Consumer |      3,340       33.40       33.40
                   LW Lawyer |        203        2.03       35.43
                MD Physician |      2,896       28.96       64.39
OT Other health-professional |      2,070       20.70       85.09
               PH Pharmacist |        509        5.09       90.18
                           . |        982        9.82      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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