Frequencies for first 10,000 rows of popct variable in nhamcsed2010 dataset : Initial | vital | signs: | Pulse | oximetry | (percent) | Freq. Percent Cum. ------------+----------------------------------- blank | 1,104 11.04 11.04 0 | 2 0.02 11.06 1 | 1 0.01 11.07 2 | 11 0.11 11.18 3 | 2 0.02 11.20 8 | 1 0.01 11.21 9 | 3 0.03 11.24 10 | 3 0.03 11.27 15 | 1 0.01 11.28 18 | 3 0.03 11.31 20 | 1 0.01 11.32 50 | 1 0.01 11.33 52 | 1 0.01 11.34 56 | 1 0.01 11.35 61 | 1 0.01 11.36 62 | 1 0.01 11.37 63 | 1 0.01 11.38 64 | 1 0.01 11.39 66 | 3 0.03 11.42 68 | 2 0.02 11.44 70 | 1 0.01 11.45 71 | 4 0.04 11.49 72 | 2 0.02 11.51 73 | 3 0.03 11.54 74 | 2 0.02 11.56 75 | 1 0.01 11.57 76 | 7 0.07 11.64 77 | 4 0.04 11.68 78 | 5 0.05 11.73 79 | 8 0.08 11.81 80 | 4 0.04 11.85 81 | 6 0.06 11.91 82 | 4 0.04 11.95 83 | 3 0.03 11.98 84 | 6 0.06 12.04 85 | 11 0.11 12.15 86 | 12 0.12 12.27 87 | 10 0.10 12.37 88 | 19 0.19 12.56 89 | 13 0.13 12.69 90 | 30 0.30 12.99 91 | 31 0.31 13.30 92 | 59 0.59 13.89 93 | 111 1.11 15.00 94 | 194 1.94 16.94 95 | 457 4.57 21.51 96 | 766 7.66 29.17 97 | 1,204 12.04 41.21 98 | 1,837 18.37 59.58 99 | 1,757 17.57 77.15 100 | 2,285 22.85 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016