Frequencies for first 10,000 rows of cityrs variable in mort1975 dataset : cityrs | Freq. Percent Cum. ------------+----------------------------------- 003 | 101 1.01 1.01 009 | 97 0.97 1.98 012 | 47 0.47 2.45 018 | 38 0.38 2.83 021 | 138 1.38 4.21 024 | 73 0.73 4.94 027 | 158 1.58 6.52 030 | 11 0.11 6.63 033 | 26 0.26 6.89 042 | 36 0.36 7.25 051 | 127 1.27 8.52 054 | 19 0.19 8.71 063 | 65 0.65 9.36 066 | 108 1.08 10.44 069 | 29 0.29 10.73 075 | 62 0.62 11.35 078 | 263 2.63 13.98 081 | 27 0.27 14.25 084 | 101 1.01 15.26 087 | 18 0.18 15.44 090 | 37 0.37 15.81 096 | 45 0.45 16.26 102 | 28 0.28 16.54 114 | 26 0.26 16.80 120 | 26 0.26 17.06 132 | 23 0.23 17.29 144 | 134 1.34 18.63 156 | 106 1.06 19.69 180 | 38 0.38 20.07 213 | 102 1.02 21.09 219 | 20 0.20 21.29 222 | 19 0.19 21.48 261 | 38 0.38 21.86 276 | 245 2.45 24.31 282 | 51 0.51 24.82 285 | 17 0.17 24.99 291 | 75 0.75 25.74 294 | 123 1.23 26.97 357 | 11 0.11 27.08 375 | 16 0.16 27.24 471 | 22 0.22 27.46 492 | 23 0.23 27.69 501 | 45 0.45 28.14 510 | 15 0.15 28.29 999 | 7,151 71.51 99.80 ZZZ | 20 0.20 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015