Frequencies for first 10,000 rows of proc5 variable in namcs2013 dataset : Write-in | procedure | code | Freq. Percent Cum. ------------+----------------------------------- -9 | 9,942 99.42 99.42 1259 | 1 0.01 99.43 1341 | 1 0.01 99.44 1359 | 2 0.02 99.46 1371 | 1 0.01 99.47 149- | 1 0.01 99.48 4024 | 1 0.01 99.49 554- | 1 0.01 99.50 7359 | 1 0.01 99.51 8192 | 1 0.01 99.52 863- | 1 0.01 99.53 8744 | 1 0.01 99.54 8908 | 9 0.09 99.63 8925 | 1 0.01 99.64 8938 | 1 0.01 99.65 8959 | 4 0.04 99.69 9052 | 4 0.04 99.73 9059 | 4 0.04 99.77 9092 | 1 0.01 99.78 9132 | 5 0.05 99.83 9139 | 1 0.01 99.84 9159 | 1 0.01 99.85 9357 | 1 0.01 99.86 9359 | 1 0.01 99.87 9503 | 1 0.01 99.88 9509 | 1 0.01 99.89 9547 | 1 0.01 99.90 9653 | 1 0.01 99.91 9939 | 1 0.01 99.92 9952 | 1 0.01 99.93 9955 | 3 0.03 99.96 9959 | 3 0.03 99.99 9999 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 27 Mar 2017