Frequencies for first 10,000 rows of prov0690 variable in pos2001 dataset : type of | non-partici | pating | provider | Freq. Percent Cum. ------------+----------------------------------- | 9,903 99.03 99.03 E | 31 0.31 99.34 F | 66 0.66 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016