Frequencies for first 10,000 rows of provider variable in nhamcsopd1997 dataset : provider | code | Freq. Percent Cum. ------------+----------------------------------- 2 | 134 1.34 1.34 3 | 132 1.32 2.66 4 | 111 1.11 3.77 5 | 151 1.51 5.28 10 | 161 1.61 6.89 13 | 198 1.98 8.87 17 | 175 1.75 10.62 21 | 116 1.16 11.78 22 | 147 1.47 13.25 26 | 172 1.72 14.97 29 | 92 0.92 15.89 30 | 78 0.78 16.67 39 | 147 1.47 18.14 40 | 118 1.18 19.32 42 | 135 1.35 20.67 44 | 134 1.34 22.01 45 | 152 1.52 23.53 49 | 107 1.07 24.60 53 | 105 1.05 25.65 56 | 187 1.87 27.52 58 | 153 1.53 29.05 61 | 108 1.08 30.13 69 | 234 2.34 32.47 77 | 93 0.93 33.40 80 | 137 1.37 34.77 88 | 104 1.04 35.81 90 | 160 1.60 37.41 95 | 159 1.59 39.00 97 | 111 1.11 40.11 98 | 152 1.52 41.63 105 | 116 1.16 42.79 106 | 33 0.33 43.12 107 | 114 1.14 44.26 108 | 165 1.65 45.91 113 | 181 1.81 47.72 114 | 161 1.61 49.33 117 | 230 2.30 51.63 118 | 114 1.14 52.77 120 | 38 0.38 53.15 125 | 129 1.29 54.44 130 | 149 1.49 55.93 131 | 94 0.94 56.87 136 | 134 1.34 58.21 138 | 161 1.61 59.82 140 | 40 0.40 60.22 142 | 133 1.33 61.55 144 | 122 1.22 62.77 154 | 174 1.74 64.51 155 | 135 1.35 65.86 157 | 138 1.38 67.24 158 | 147 1.47 68.71 164 | 166 1.66 70.37 166 | 185 1.85 72.22 169 | 30 0.30 72.52 178 | 186 1.86 74.38 184 | 127 1.27 75.65 185 | 125 1.25 76.90 187 | 144 1.44 78.34 188 | 164 1.64 79.98 191 | 91 0.91 80.89 195 | 215 2.15 83.04 199 | 31 0.31 83.35 202 | 144 1.44 84.79 203 | 157 1.57 86.36 204 | 84 0.84 87.20 205 | 135 1.35 88.55 208 | 122 1.22 89.77 210 | 97 0.97 90.74 212 | 166 1.66 92.40 213 | 94 0.94 93.34 223 | 137 1.37 94.71 228 | 70 0.70 95.41 229 | 142 1.42 96.83 230 | 172 1.72 98.55 234 | 145 1.45 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016