Frequencies for first 10,000 rows of limitunit variable in bencs2015 dataset :

                     Limit Unit |      Freq.     Percent        Cum.
--------------------------------+-----------------------------------
                                |      8,648       86.48       86.48
        Days per benefit period |         94        0.94       87.42
                  Days per year |         27        0.27       87.69
               Exam(s) per Year |         27        0.27       87.96
            Item(s) per 3 Years |         20        0.20       88.16
           Item(s) per Lifetime |         12        0.12       88.28
               Item(s) per Year |         28        0.28       88.56
               Item(s) per year |         94        0.94       89.50
       Procedure(s) per 2 Years |          2        0.02       89.52
       Procedure(s) per 3 Years |          8        0.08       89.60
      Procedure(s) per 6 Months |          2        0.02       89.62
          Procedure(s) per Year |          2        0.02       89.64
Procedure(s) per benefit period |         94        0.94       90.58
       Treatment(s) per Episode |         12        0.12       90.70
      Treatment(s) per Lifetime |         33        0.33       91.03
     Treatment(s) per Procedure |         25        0.25       91.28
          Visit(s) per 6 Months |         93        0.93       92.21
          Visit(s) per 6 months |         12        0.12       92.33
    Visit(s) per Benefit Period |        376        3.76       96.09
              Visit(s) per Year |        203        2.03       98.12
    Visit(s) per benefit period |         94        0.94       99.06
              Visit(s) per year |         94        0.94      100.00
--------------------------------+-----------------------------------
                          Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 9 Dec 2017