Frequencies for first 10,000 rows of occp_cod variable in demo2013q2 dataset :

Abbreviatio |
  n for the |
 reporter's |
    type of |
 occupation |
     in the |
     latest |
 version of |
       a ca |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        646        6.46        6.46
         CN |      3,682       36.82       43.28
         LW |        610        6.10       49.38
         MD |      3,095       30.95       80.33
         OT |      1,685       16.85       97.18
         PH |        215        2.15       99.33
         RN |         67        0.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 6 Apr 2017