Frequencies for first 10,000 rows of prov1820 variable in pos1996 dataset : resident | program | approved by | other | Freq. Percent Cum. ------------+----------------------------------- | 8,803 88.03 88.03 N | 1,093 10.93 98.96 Y | 104 1.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016