Frequencies for kneereplacementper1000medicareen variable in 1992_surg_discharg

       Knee |
Replacement |
   per 1000 |
   Medicare |
  Enrollees |
       1992 |      Freq.     Percent        Cum.
------------+-----------------------------------
   1.527214 |          1        1.92        1.92
   2.388499 |          1        1.92        3.85
   2.415258 |          1        1.92        5.77
   2.548671 |          1        1.92        7.69
   2.692926 |          1        1.92        9.62
   2.917904 |          1        1.92       11.54
   3.004557 |          1        1.92       13.46
   3.006919 |          1        1.92       15.38
   3.026798 |          1        1.92       17.31
   3.200354 |          1        1.92       19.23
   3.312356 |          1        1.92       21.15
   3.409375 |          1        1.92       23.08
   3.411384 |          1        1.92       25.00
   3.469039 |          1        1.92       26.92
    3.52538 |          1        1.92       28.85
   3.554885 |          1        1.92       30.77
   3.609157 |          1        1.92       32.69
   3.689227 |          1        1.92       34.62
   3.737384 |          1        1.92       36.54
   3.752278 |          1        1.92       38.46
   3.823657 |          1        1.92       40.38
   3.862163 |          1        1.92       42.31
   3.935133 |          1        1.92       44.23
    3.94222 |          1        1.92       46.15
   3.946648 |          1        1.92       48.08
   3.951935 |          1        1.92       50.00
   3.992354 |          1        1.92       51.92
   4.108546 |          1        1.92       53.85
   4.163088 |          1        1.92       55.77
   4.206466 |          1        1.92       57.69
    4.20921 |          1        1.92       59.62
   4.264857 |          1        1.92       61.54
   4.398587 |          1        1.92       63.46
   4.499114 |          1        1.92       65.38
    4.55803 |          1        1.92       67.31
   4.594455 |          1        1.92       69.23
   4.630155 |          1        1.92       71.15
   4.665237 |          1        1.92       73.08
   4.820403 |          1        1.92       75.00
   4.918915 |          1        1.92       76.92
   4.965066 |          1        1.92       78.85
   5.287992 |          1        1.92       80.77
   5.597426 |          1        1.92       82.69
   5.692997 |          1        1.92       84.62
   5.823225 |          1        1.92       86.54
   5.916918 |          1        1.92       88.46
   6.233015 |          1        1.92       90.38
   6.290376 |          1        1.92       92.31
   6.327788 |          1        1.92       94.23
   6.369804 |          1        1.92       96.15
   6.517538 |          1        1.92       98.08
   6.582382 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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