Frequencies for first 10,000 rows of vctnl_srvc_onst_nrsdnt_sw variable in pos2007 dataset : srv: | vocational- | onsite-non | resid | Freq. Percent Cum. ------------+----------------------------------- | 7,522 75.22 75.22 N | 2,470 24.70 99.92 Y | 8 0.08 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017