Frequencies for first 10,000 rows of prov3475 variable in pos2008 dataset : srv: | vocational- | onsite-non | resid | Freq. Percent Cum. ------------+----------------------------------- | 7,661 76.61 76.61 N | 2,333 23.33 99.94 Y | 6 0.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016