Frequencies for first 10,000 rows of prov3355 variable in pos1995 dataset : srv: occup | ther-onsite | -non resid | Freq. Percent Cum. ------------+----------------------------------- | 7,523 75.23 75.23 N | 2,390 23.90 99.13 Y | 87 0.87 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016