Frequencies for first 10,000 rows of prov3270 variable in pos1997 dataset : physician | extender - | contract | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,831 98.31 98.31 .01 | 17 0.17 98.48 .03 | 15 0.15 98.63 .04 | 3 0.03 98.66 .06 | 32 0.32 98.98 .07 | 5 0.05 99.03 .09 | 12 0.12 99.15 .1 | 1 0.01 99.16 .11 | 17 0.17 99.33 .14 | 8 0.08 99.41 .17 | 6 0.06 99.47 .2 | 3 0.03 99.50 .21 | 3 0.03 99.53 .23 | 12 0.12 99.65 .29 | 6 0.06 99.71 .31 | 1 0.01 99.72 .34 | 2 0.02 99.74 .36 | 2 0.02 99.76 .43 | 3 0.03 99.79 .46 | 3 0.03 99.82 .51 | 1 0.01 99.83 .57 | 2 0.02 99.85 .6 | 1 0.01 99.86 .71 | 1 0.01 99.87 .74 | 1 0.01 99.88 .86 | 1 0.01 99.89 1.14 | 4 0.04 99.93 1.29 | 1 0.01 99.94 1.43 | 2 0.02 99.96 5.71 | 1 0.01 99.97 8.57 | 1 0.01 99.98 11.43 | 1 0.01 99.99 28.57 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016