Frequencies for carotidendarterectomyper1000medi variable in 1999_surg_discharg

    Carotid |
Endarterect |
    omy per |
       1000 |
   Medicare |
  Enrollees |
       1999 |      Freq.     Percent        Cum.
------------+-----------------------------------
   .8270846 |          1        1.92        1.92
   1.712916 |          1        1.92        3.85
    1.78912 |          1        1.92        5.77
   1.828224 |          1        1.92        7.69
   1.989459 |          1        1.92        9.62
   2.154454 |          1        1.92       11.54
   2.317806 |          1        1.92       13.46
   2.436092 |          1        1.92       15.38
    2.46777 |          1        1.92       17.31
   2.481272 |          1        1.92       19.23
   2.497305 |          1        1.92       21.15
   2.601507 |          1        1.92       23.08
   2.660484 |          1        1.92       25.00
    2.68595 |          1        1.92       26.92
   2.839167 |          1        1.92       28.85
   2.848745 |          1        1.92       30.77
   2.889524 |          1        1.92       32.69
   2.951426 |          1        1.92       34.62
   2.981867 |          1        1.92       36.54
   2.992275 |          1        1.92       38.46
   3.011816 |          1        1.92       40.38
   3.017131 |          1        1.92       42.31
   3.105048 |          1        1.92       44.23
   3.131283 |          1        1.92       46.15
   3.138955 |          1        1.92       48.08
   3.145009 |          1        1.92       50.00
   3.284883 |          1        1.92       51.92
   3.358578 |          1        1.92       53.85
   3.394455 |          1        1.92       55.77
   3.412486 |          1        1.92       57.69
    3.45021 |          1        1.92       59.62
    3.49806 |          1        1.92       61.54
   3.513495 |          1        1.92       63.46
   3.540837 |          1        1.92       65.38
    3.59384 |          1        1.92       67.31
   3.594295 |          1        1.92       69.23
   3.622288 |          1        1.92       71.15
    3.76488 |          1        1.92       73.08
   3.838227 |          1        1.92       75.00
   3.855422 |          1        1.92       76.92
   3.901383 |          1        1.92       78.85
   3.911016 |          1        1.92       80.77
   3.920342 |          1        1.92       82.69
   3.924488 |          1        1.92       84.62
   4.145017 |          1        1.92       86.54
   4.172172 |          1        1.92       88.46
   4.207529 |          1        1.92       90.38
   4.382084 |          1        1.92       92.31
   4.503046 |          1        1.92       94.23
   4.527119 |          1        1.92       96.15
   4.550785 |          1        1.92       98.08
   4.803902 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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