Frequencies for first 10,000 rows of occp_cod variable in demo2009q1 dataset : Abbreviatio | n for the | reporter's | type of | occupation | in the | latest | version of | a ca | Freq. Percent Cum. ------------+----------------------------------- | 1,142 11.42 11.42 CN | 3,219 32.19 43.61 LW | 132 1.32 44.93 MD | 3,000 30.00 74.93 OT | 1,914 19.14 94.07 PH | 593 5.93 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Dec 2015