Frequencies for first 10,000 rows of occp_cod variable in demo2011q4 dataset : Abbreviatio | n for the | reporter's | type of | occupation | in the | latest | version of | a ca | Freq. Percent Cum. ------------+----------------------------------- | 384 3.84 3.84 CN | 3,877 38.77 42.61 LW | 362 3.62 46.23 MD | 2,723 27.23 73.46 OT | 2,010 20.10 93.56 PH | 644 6.44 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Dec 2015