Frequencies for first 10,000 rows of proc12 variable in nhamcsed1995 dataset :

      other |
  procedure |
 #1 - 2 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,750       97.50       97.50
         04 |          2        0.02       97.52
         18 |          1        0.01       97.53
         21 |          1        0.01       97.54
         24 |          2        0.02       97.56
         27 |          3        0.03       97.59
         34 |          4        0.04       97.63
         37 |          1        0.01       97.64
         38 |          8        0.08       97.72
         39 |          2        0.02       97.74
         40 |          1        0.01       97.75
         44 |          1        0.01       97.76
         45 |          2        0.02       97.78
         48 |          3        0.03       97.81
         49 |          4        0.04       97.85
         53 |          1        0.01       97.86
         54 |          1        0.01       97.87
         57 |          2        0.02       97.89
         81 |          1        0.01       97.90
         86 |         15        0.15       98.05
         89 |         70        0.70       98.75
         90 |          7        0.07       98.82
         91 |          6        0.06       98.88
         93 |         57        0.57       99.45
         94 |         10        0.10       99.55
         96 |         20        0.20       99.75
         97 |          3        0.03       99.78
         98 |          3        0.03       99.81
         99 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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