Frequencies for first 10,000 rows of amb23 variable in namcs1997 dataset : ambulatory | surg | procedure | #2 - 3 dgt | Freq. Percent Cum. ------------+----------------------------------- 000 | 9,950 99.50 99.50 082 | 3 0.03 99.53 088 | 1 0.01 99.54 187 | 1 0.01 99.55 194 | 1 0.01 99.56 213 | 2 0.02 99.58 276 | 1 0.01 99.59 291 | 1 0.01 99.60 314 | 1 0.01 99.61 422 | 1 0.01 99.62 451 | 2 0.02 99.64 452 | 1 0.01 99.65 547 | 1 0.01 99.66 671 | 1 0.01 99.67 702 | 1 0.01 99.68 858 | 1 0.01 99.69 861 | 4 0.04 99.73 862 | 1 0.01 99.74 863 | 11 0.11 99.85 868 | 2 0.02 99.87 892 | 1 0.01 99.88 902 | 2 0.02 99.90 903 | 1 0.01 99.91 916 | 5 0.05 99.96 935 | 2 0.02 99.98 962 | 1 0.01 99.99 999 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016