Frequencies for first 10,000 rows of proc4 variable in nhamcsopd1994 dataset : service #4 | procedure | code - 4 | digits | Freq. Percent Cum. ------------+----------------------------------- 0000 | 9,892 98.92 98.92 4131 | 1 0.01 98.93 4524 | 2 0.02 98.95 5421 | 1 0.01 98.96 6732 | 1 0.01 98.97 6909 | 1 0.01 98.98 7021 | 1 0.01 98.99 7534 | 1 0.01 99.00 863- | 1 0.01 99.01 8724 | 1 0.01 99.02 8737 | 3 0.03 99.05 8744 | 5 0.05 99.10 8779 | 2 0.02 99.12 8801 | 1 0.01 99.13 8828 | 1 0.01 99.14 8839 | 3 0.03 99.17 8875 | 1 0.01 99.18 8877 | 1 0.01 99.19 8878 | 8 0.08 99.27 8897 | 1 0.01 99.28 8908 | 2 0.02 99.30 8909 | 1 0.01 99.31 8922 | 1 0.01 99.32 8926 | 5 0.05 99.37 8936 | 2 0.02 99.39 8950 | 1 0.01 99.40 8952 | 2 0.02 99.42 8959 | 1 0.01 99.43 9141 | 7 0.07 99.50 9142 | 16 0.16 99.66 9146 | 6 0.06 99.72 9323 | 1 0.01 99.73 9357 | 1 0.01 99.74 9359 | 3 0.03 99.77 9439 | 5 0.05 99.82 9444 | 2 0.02 99.84 9505 | 1 0.01 99.85 9509 | 3 0.03 99.88 9511 | 1 0.01 99.89 9526 | 1 0.01 99.90 9531 | 3 0.03 99.93 9999 | 7 0.07 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016