Frequencies for first 10,000 rows of popct variable in nhamcsed2008 dataset :

      pulse |
   oximetry |
  (percent) |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |      2,180       21.80       21.80
          0 |          3        0.03       21.83
          9 |          1        0.01       21.84
         20 |          4        0.04       21.88
         38 |          1        0.01       21.89
         44 |          2        0.02       21.91
         51 |          1        0.01       21.92
         52 |          1        0.01       21.93
         53 |          1        0.01       21.94
         55 |          2        0.02       21.96
         56 |          1        0.01       21.97
         58 |          2        0.02       21.99
         59 |          1        0.01       22.00
         60 |          2        0.02       22.02
         61 |          1        0.01       22.03
         62 |          2        0.02       22.05
         63 |          2        0.02       22.07
         64 |          1        0.01       22.08
         65 |          4        0.04       22.12
         66 |          5        0.05       22.17
         67 |          3        0.03       22.20
         68 |          5        0.05       22.25
         70 |          7        0.07       22.32
         71 |          4        0.04       22.36
         72 |          6        0.06       22.42
         73 |          6        0.06       22.48
         74 |          4        0.04       22.52
         75 |          7        0.07       22.59
         76 |          5        0.05       22.64
         77 |          7        0.07       22.71
         78 |          5        0.05       22.76
         79 |          4        0.04       22.80
         80 |         11        0.11       22.91
         81 |         10        0.10       23.01
         82 |          8        0.08       23.09
         83 |          7        0.07       23.16
         84 |         10        0.10       23.26
         85 |         11        0.11       23.37
         86 |         14        0.14       23.51
         87 |         10        0.10       23.61
         88 |         20        0.20       23.81
         89 |         24        0.24       24.05
         90 |         42        0.42       24.47
         91 |         29        0.29       24.76
         92 |         73        0.73       25.49
         93 |        116        1.16       26.65
         94 |        217        2.17       28.82
         95 |        370        3.70       32.52
         96 |        707        7.07       39.59
         97 |      1,155       11.55       51.14
         98 |      1,724       17.24       68.38
         99 |      1,467       14.67       83.05
        100 |      1,695       16.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016