Frequencies for first 10,000 rows of amb23 variable in namcs2000 dataset : ambulatory | surg | procedure | #2 - 3 dgt | Freq. Percent Cum. ------------+----------------------------------- 000 | 9,979 99.79 99.79 082 | 1 0.01 99.80 182 | 1 0.01 99.81 690 | 1 0.01 99.82 790 | 1 0.01 99.83 810 | 1 0.01 99.84 819 | 1 0.01 99.85 851 | 4 0.04 99.89 852 | 1 0.01 99.90 860 | 1 0.01 99.91 863 | 1 0.01 99.92 892 | 1 0.01 99.93 916 | 1 0.01 99.94 935 | 2 0.02 99.96 965 | 1 0.01 99.97 978 | 1 0.01 99.98 982 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016