Frequencies for backsurgeryper1000medicareenroll variable in 1997_surg_discharg

       Back |
Surgery per |
       1000 |
   Medicare |
  Enrollees |
       1997 |      Freq.     Percent        Cum.
------------+-----------------------------------
   1.742236 |          1        1.92        1.92
   1.795386 |          1        1.92        3.85
   1.817166 |          1        1.92        5.77
   1.897377 |          1        1.92        7.69
   1.991767 |          1        1.92        9.62
   2.049302 |          1        1.92       11.54
   2.089596 |          1        1.92       13.46
   2.204311 |          1        1.92       15.38
   2.289701 |          1        1.92       17.31
   2.326054 |          1        1.92       19.23
    2.49717 |          1        1.92       21.15
   2.501231 |          1        1.92       23.08
   2.507986 |          1        1.92       25.00
   2.532436 |          1        1.92       26.92
   2.663285 |          1        1.92       28.85
   2.689007 |          1        1.92       30.77
    2.69308 |          1        1.92       32.69
   2.829058 |          1        1.92       34.62
   2.835474 |          1        1.92       36.54
   2.887347 |          1        1.92       38.46
    2.90048 |          1        1.92       40.38
   2.919806 |          1        1.92       42.31
   2.940979 |          1        1.92       44.23
   2.941531 |          1        1.92       46.15
   2.993508 |          1        1.92       48.08
   3.012978 |          1        1.92       50.00
   3.039745 |          1        1.92       51.92
   3.071097 |          1        1.92       53.85
   3.142531 |          1        1.92       55.77
   3.151403 |          1        1.92       57.69
   3.170989 |          1        1.92       59.62
   3.175963 |          1        1.92       61.54
   3.264027 |          1        1.92       63.46
   3.315814 |          1        1.92       65.38
   3.320116 |          1        1.92       67.31
   3.383934 |          1        1.92       69.23
   3.445612 |          1        1.92       71.15
   3.476233 |          1        1.92       73.08
   3.480442 |          1        1.92       75.00
   3.566388 |          1        1.92       76.92
   3.576838 |          1        1.92       78.85
   3.647575 |          1        1.92       80.77
    3.65062 |          1        1.92       82.69
   3.747639 |          1        1.92       84.62
   3.777405 |          1        1.92       86.54
   3.958971 |          1        1.92       88.46
   4.019211 |          1        1.92       90.38
   4.172469 |          1        1.92       92.31
   4.577601 |          1        1.92       94.23
   5.338689 |          1        1.92       96.15
   5.582354 |          1        1.92       98.08
   6.472502 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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