Frequencies for first 10,000 rows of prov2410 variable in pos2009 dataset : SRV: | POSTOPERATI | VE RECOVERY | ROOM | Freq. Percent Cum. ------------+----------------------------------- | 8,638 86.38 86.38 0 | 409 4.09 90.47 1 | 903 9.03 99.50 2 | 36 0.36 99.86 3 | 14 0.14 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016