Frequencies for first 10,000 rows of otherob variable in natl1995 dataset : Other | Obstetric | Procedures | Freq. Percent Cum. ------------+----------------------------------- 1 | 61 0.61 0.61 2 | 9,912 99.12 99.73 9 | 27 0.27 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015