Frequencies for first 10,000 rows of cpsum variable in nhamcsopd2011 dataset : Clustered | CPSUM - | masked. | Freq. Percent Cum. ------------+----------------------------------- 12 | 147 1.47 1.47 13 | 1,072 10.72 12.19 14 | 532 5.32 17.51 26 | 660 6.60 24.11 30 | 562 5.62 29.73 39 | 251 2.51 32.24 40 | 277 2.77 35.01 45 | 216 2.16 37.17 100003 | 91 0.91 38.08 100004 | 334 3.34 41.42 100006 | 67 0.67 42.09 100007 | 147 1.47 43.56 100008 | 296 2.96 46.52 100010 | 192 1.92 48.44 100011 | 317 3.17 51.61 100012 | 156 1.56 53.17 100014 | 372 3.72 56.89 100015 | 184 1.84 58.73 100016 | 121 1.21 59.94 100017 | 211 2.11 62.05 100018 | 350 3.50 65.55 100020 | 193 1.93 67.48 100022 | 388 3.88 71.36 100023 | 245 2.45 73.81 100027 | 131 1.31 75.12 100028 | 116 1.16 76.28 100029 | 164 1.64 77.92 100030 | 347 3.47 81.39 100031 | 243 2.43 83.82 100038 | 100 1.00 84.82 100039 | 154 1.54 86.36 100040 | 244 2.44 88.80 100041 | 31 0.31 89.11 100044 | 166 1.66 90.77 100045 | 268 2.68 93.45 100047 | 159 1.59 95.04 100048 | 98 0.98 96.02 100049 | 224 2.24 98.26 100050 | 174 1.74 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016