Frequencies for first 10,000 rows of limitunit variable in bencs2017 dataset :

                     Limit Unit |      Freq.     Percent        Cum.
--------------------------------+-----------------------------------
                                |      8,185       81.85       81.85
                  Days per Year |         94        0.94       82.79
            Dollars per 3 Years |          4        0.04       82.83
           Dollars per Lifetime |         30        0.30       83.13
               Dollars per Year |         32        0.32       83.45
            Exam(s) per 2 Years |          4        0.04       83.49
           Exam(s) per 6 Months |         60        0.60       84.09
               Exam(s) per Year |         95        0.95       85.04
                 Hours per Year |         33        0.33       85.37
     Item(s) per Benefit Period |          4        0.04       85.41
              Item(s) per Month |        120        1.20       86.61
               Item(s) per Year |        128        1.28       87.89
            Months per Lifetime |         30        0.30       88.19
       Procedure(s) per 2 Years |          2        0.02       88.21
       Procedure(s) per 3 Years |         64        0.64       88.85
      Procedure(s) per 6 Months |          2        0.02       88.87
      Procedure(s) per Lifetime |          2        0.02       88.89
          Procedure(s) per Year |          6        0.06       88.95
       Treatment(s) per Episode |         10        0.10       89.05
     Treatment(s) per Procedure |         20        0.20       89.25
          Visit(s) per 6 Months |        105        1.05       90.30
    Visit(s) per Benefit Period |          4        0.04       90.34
              Visit(s) per Year |        966        9.66      100.00
--------------------------------+-----------------------------------
                          Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 Dec 2017