Frequencies for first 10,000 rows of prov2305 variable in pos2005 dataset : spec: oral | Freq. Percent Cum. ------------+----------------------------------- | 9,323 93.23 93.23 N | 490 4.90 98.13 Y | 187 1.87 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016