Frequencies for first 10,000 rows of prov3395 variable in pos1995 dataset : srv: social | work-onsite | -residents | Freq. Percent Cum. ------------+----------------------------------- | 7,523 75.23 75.23 N | 78 0.78 76.01 Y | 2,399 23.99 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016