Frequencies for first 10,000 rows of amb12 variable in namcs1995 dataset :

 ambulatory |
   surgical |
proc #1 - 2 |
        dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,663       96.63       96.63
         02 |          1        0.01       96.64
         03 |          1        0.01       96.65
         04 |          2        0.02       96.67
         08 |          2        0.02       96.69
         11 |          1        0.01       96.70
         13 |          2        0.02       96.72
         14 |          1        0.01       96.73
         18 |          5        0.05       96.78
         20 |          1        0.01       96.79
         21 |          1        0.01       96.80
         29 |          1        0.01       96.81
         33 |          1        0.01       96.82
         37 |          1        0.01       96.83
         38 |          1        0.01       96.84
         39 |          1        0.01       96.85
         42 |          1        0.01       96.86
         44 |          1        0.01       96.87
         45 |         19        0.19       97.06
         47 |          1        0.01       97.07
         48 |         16        0.16       97.23
         49 |         12        0.12       97.35
         54 |          4        0.04       97.39
         57 |          1        0.01       97.40
         58 |          2        0.02       97.42
         63 |          4        0.04       97.46
         64 |          2        0.02       97.48
         66 |          1        0.01       97.49
         67 |          2        0.02       97.51
         68 |          1        0.01       97.52
         70 |          4        0.04       97.56
         79 |          1        0.01       97.57
         81 |         17        0.17       97.74
         82 |          1        0.01       97.75
         83 |          2        0.02       97.77
         85 |          2        0.02       97.79
         86 |        144        1.44       99.23
         93 |         13        0.13       99.36
         96 |         27        0.27       99.63
         97 |         26        0.26       99.89
         98 |          6        0.06       99.95
         99 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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