Frequencies for first 10,000 rows of prov2400 variable in pos2006 dataset : spec: | plastic | Freq. Percent Cum. ------------+----------------------------------- | 9,531 95.31 95.31 N | 241 2.41 97.72 Y | 228 2.28 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016