Frequencies for first 10,000 rows of prov0275 variable in pos1991 dataset : compliance: | provider | status | Freq. Percent Cum. ------------+----------------------------------- | 9,949 99.49 99.49 4 | 51 0.51 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016