Frequencies for kneereplacementper1000medicareen variable in 2010_surg_discharg

       Knee |
Replacement |
   per 1000 |
   Medicare |
  Enrollees |
       2010 |      Freq.     Percent        Cum.
------------+-----------------------------------
       3.42 |          1        1.92        1.92
       6.29 |          1        1.92        3.85
       6.67 |          1        1.92        5.77
        7.1 |          1        1.92        7.69
        7.2 |          1        1.92        9.62
       7.27 |          1        1.92       11.54
       7.43 |          1        1.92       13.46
       7.66 |          1        1.92       15.38
       7.68 |          1        1.92       17.31
       7.71 |          1        1.92       19.23
       7.77 |          1        1.92       21.15
       7.87 |          1        1.92       23.08
       7.98 |          1        1.92       25.00
       8.51 |          1        1.92       26.92
       8.58 |          3        5.77       32.69
       8.72 |          1        1.92       34.62
       8.75 |          1        1.92       36.54
       8.84 |          1        1.92       38.46
       8.86 |          1        1.92       40.38
       8.88 |          1        1.92       42.31
       8.98 |          1        1.92       44.23
       9.04 |          1        1.92       46.15
       9.05 |          1        1.92       48.08
        9.1 |          1        1.92       50.00
       9.13 |          1        1.92       51.92
       9.16 |          1        1.92       53.85
       9.31 |          1        1.92       55.77
       9.37 |          1        1.92       57.69
       9.43 |          1        1.92       59.62
       9.64 |          1        1.92       61.54
       9.75 |          1        1.92       63.46
       9.79 |          1        1.92       65.38
       9.85 |          1        1.92       67.31
       9.92 |          1        1.92       69.23
       9.95 |          1        1.92       71.15
      10.22 |          1        1.92       73.08
      10.71 |          1        1.92       75.00
      10.82 |          1        1.92       76.92
      11.02 |          1        1.92       78.85
      11.16 |          1        1.92       80.77
      11.28 |          1        1.92       82.69
      11.42 |          1        1.92       84.62
      11.82 |          1        1.92       86.54
      12.02 |          1        1.92       88.46
      12.23 |          1        1.92       90.38
      12.25 |          1        1.92       92.31
      12.44 |          1        1.92       94.23
      12.56 |          1        1.92       96.15
      12.58 |          1        1.92       98.08
      13.09 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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