Frequencies for first 10,000 rows of otherob variable in natl1994 dataset : Other | Obstetric | Procedures | Freq. Percent Cum. ------------+----------------------------------- 1 | 45 0.45 0.45 2 | 9,938 99.38 99.83 9 | 17 0.17 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015