Frequencies for first 10,000 rows of othpr32d variable in nhamcsopd2008 dataset : procedure 3 | - 2 digit | Freq. Percent Cum. ------------+----------------------------------- -9 | 9,975 99.75 99.75 21 | 2 0.02 99.77 28 | 1 0.01 99.78 39 | 1 0.01 99.79 54 | 1 0.01 99.80 82 | 1 0.01 99.81 83 | 2 0.02 99.83 86 | 2 0.02 99.85 87 | 2 0.02 99.87 89 | 6 0.06 99.93 90 | 2 0.02 99.95 93 | 2 0.02 99.97 99 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016