Frequencies for cholecystectomyper1000medicareen variable in 2009_surg_discharg

Cholecystec |
   tomy per |
       1000 |
   Medicare |
  Enrollees |
       2009 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1.88 |          1        1.92        1.92
       1.95 |          1        1.92        3.85
       2.15 |          1        1.92        5.77
       2.32 |          1        1.92        7.69
       2.48 |          1        1.92        9.62
       2.59 |          1        1.92       11.54
       2.65 |          1        1.92       13.46
       2.72 |          1        1.92       15.38
       2.74 |          1        1.92       17.31
       2.77 |          1        1.92       19.23
        2.8 |          1        1.92       21.15
        2.9 |          1        1.92       23.08
       2.95 |          1        1.92       25.00
       3.04 |          1        1.92       26.92
       3.06 |          1        1.92       28.85
        3.1 |          1        1.92       30.77
       3.14 |          1        1.92       32.69
       3.15 |          2        3.85       36.54
       3.17 |          1        1.92       38.46
       3.25 |          1        1.92       40.38
       3.27 |          1        1.92       42.31
       3.29 |          2        3.85       46.15
        3.3 |          1        1.92       48.08
       3.36 |          1        1.92       50.00
        3.4 |          1        1.92       51.92
       3.41 |          1        1.92       53.85
       3.42 |          1        1.92       55.77
       3.45 |          2        3.85       59.62
       3.48 |          3        5.77       65.38
       3.51 |          1        1.92       67.31
       3.56 |          2        3.85       71.15
       3.59 |          2        3.85       75.00
       3.69 |          1        1.92       76.92
        3.7 |          1        1.92       78.85
       3.73 |          1        1.92       80.77
       3.81 |          1        1.92       82.69
       3.86 |          1        1.92       84.62
       3.88 |          1        1.92       86.54
       3.97 |          1        1.92       88.46
       3.98 |          1        1.92       90.38
       4.02 |          1        1.92       92.31
       4.35 |          1        1.92       94.23
        4.5 |          2        3.85       98.08
       4.65 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

by Jean Roth , jroth@nber.org , 14 Mar 2018