Frequencies for kneereplacementper1000medicareen variable in 1999_surg_discharg

       Knee |
Replacement |
   per 1000 |
   Medicare |
  Enrollees |
       1999 |      Freq.     Percent        Cum.
------------+-----------------------------------
   1.568254 |          1        1.92        1.92
   3.222042 |          1        1.92        3.85
   3.666166 |          1        1.92        5.77
   3.676387 |          1        1.92        7.69
   3.908446 |          1        1.92        9.62
   3.955851 |          1        1.92       11.54
   4.105263 |          1        1.92       13.46
   4.211999 |          1        1.92       15.38
   4.253101 |          1        1.92       17.31
   4.281802 |          1        1.92       19.23
   4.374896 |          1        1.92       21.15
   4.381912 |          1        1.92       23.08
   4.579797 |          1        1.92       25.00
   4.648933 |          1        1.92       26.92
   4.653182 |          1        1.92       28.85
   4.771907 |          1        1.92       30.77
   4.837861 |          1        1.92       32.69
   4.845438 |          1        1.92       34.62
   4.947799 |          1        1.92       36.54
   5.016957 |          1        1.92       38.46
   5.038068 |          1        1.92       40.38
   5.152757 |          1        1.92       42.31
    5.18315 |          1        1.92       44.23
   5.214122 |          1        1.92       46.15
   5.222801 |          1        1.92       48.08
   5.247515 |          1        1.92       50.00
   5.285444 |          1        1.92       51.92
   5.293538 |          1        1.92       53.85
    5.29747 |          1        1.92       55.77
    5.30705 |          1        1.92       57.69
   5.406002 |          1        1.92       59.62
   5.426875 |          1        1.92       61.54
   5.460692 |          1        1.92       63.46
   5.500879 |          1        1.92       65.38
   5.549709 |          1        1.92       67.31
   5.610619 |          1        1.92       69.23
   5.669566 |          1        1.92       71.15
   5.682065 |          1        1.92       73.08
    5.97106 |          1        1.92       75.00
   6.072179 |          1        1.92       76.92
    6.10664 |          1        1.92       78.85
   6.109932 |          1        1.92       80.77
   6.214889 |          1        1.92       82.69
   6.753088 |          1        1.92       84.62
   6.972416 |          1        1.92       86.54
    7.00948 |          1        1.92       88.46
   7.221649 |          1        1.92       90.38
     7.5822 |          1        1.92       92.31
   7.791744 |          1        1.92       94.23
   7.882679 |          1        1.92       96.15
   7.943796 |          1        1.92       98.08
    8.47534 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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