Frequencies for kneereplacementper1000medicareen variable in 1997_surg_discharg

       Knee |
Replacement |
   per 1000 |
   Medicare |
  Enrollees |
       1997 |      Freq.     Percent        Cum.
------------+-----------------------------------
   2.043178 |          1        1.92        1.92
   3.586337 |          1        1.92        3.85
   3.760368 |          1        1.92        5.77
   3.945618 |          1        1.92        7.69
   4.135985 |          1        1.92        9.62
   4.282864 |          1        1.92       11.54
   4.297174 |          1        1.92       13.46
   4.368728 |          1        1.92       15.38
   4.384726 |          1        1.92       17.31
   4.443262 |          1        1.92       19.23
   4.532695 |          1        1.92       21.15
   4.594107 |          1        1.92       23.08
   4.641255 |          1        1.92       25.00
   4.676175 |          1        1.92       26.92
   4.747582 |          1        1.92       28.85
   4.930855 |          1        1.92       30.77
   5.041164 |          1        1.92       32.69
   5.050957 |          1        1.92       34.62
    5.06588 |          1        1.92       36.54
   5.066155 |          1        1.92       38.46
   5.094552 |          1        1.92       40.38
   5.131672 |          1        1.92       42.31
   5.164111 |          1        1.92       44.23
   5.194086 |          1        1.92       46.15
   5.256413 |          1        1.92       48.08
   5.259538 |          1        1.92       50.00
   5.260046 |          1        1.92       51.92
   5.306932 |          1        1.92       53.85
   5.309206 |          1        1.92       55.77
    5.35259 |          1        1.92       57.69
   5.369203 |          1        1.92       59.62
   5.480395 |          1        1.92       61.54
   5.581804 |          1        1.92       63.46
   5.686485 |          1        1.92       65.38
   5.708445 |          1        1.92       67.31
   5.770249 |          1        1.92       69.23
   5.816932 |          1        1.92       71.15
   5.849148 |          1        1.92       73.08
    5.85323 |          1        1.92       75.00
   6.039217 |          1        1.92       76.92
   6.061993 |          1        1.92       78.85
   6.219216 |          1        1.92       80.77
   6.416309 |          1        1.92       82.69
   6.701344 |          1        1.92       84.62
    6.74107 |          1        1.92       86.54
   7.037517 |          1        1.92       88.46
   7.387825 |          1        1.92       90.38
   7.698548 |          1        1.92       92.31
   8.096741 |          1        1.92       94.23
   8.125405 |          1        1.92       96.15
   8.249407 |          1        1.92       98.08
   8.277706 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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