Frequencies for coronaryangiographyper1000medica variable in 2009_surg_discharg

   Coronary |
Angiography |
   per 1000 |
   Medicare |
  Enrollees |
       2009 |      Freq.     Percent        Cum.
------------+-----------------------------------
       6.15 |          1        1.92        1.92
      10.27 |          1        1.92        3.85
       10.4 |          1        1.92        5.77
      10.47 |          1        1.92        7.69
      10.82 |          1        1.92        9.62
      11.04 |          1        1.92       11.54
      11.05 |          1        1.92       13.46
      11.32 |          1        1.92       15.38
      11.45 |          1        1.92       17.31
      11.66 |          1        1.92       19.23
      12.03 |          1        1.92       21.15
      12.12 |          1        1.92       23.08
      12.24 |          1        1.92       25.00
      12.72 |          1        1.92       26.92
      13.01 |          1        1.92       28.85
      13.24 |          1        1.92       30.77
      13.95 |          1        1.92       32.69
      14.08 |          1        1.92       34.62
      14.17 |          1        1.92       36.54
      14.27 |          1        1.92       38.46
      14.78 |          1        1.92       40.38
      14.88 |          1        1.92       42.31
      15.47 |          1        1.92       44.23
      15.51 |          1        1.92       46.15
       15.7 |          1        1.92       48.08
      15.81 |          1        1.92       50.00
      15.92 |          1        1.92       51.92
      16.38 |          1        1.92       53.85
      16.45 |          1        1.92       55.77
      16.73 |          1        1.92       57.69
      16.87 |          1        1.92       59.62
      17.61 |          1        1.92       61.54
      17.72 |          1        1.92       63.46
      17.82 |          1        1.92       65.38
      17.85 |          1        1.92       67.31
      18.04 |          1        1.92       69.23
      18.34 |          1        1.92       71.15
      18.37 |          1        1.92       73.08
      18.41 |          1        1.92       75.00
      18.42 |          1        1.92       76.92
      18.62 |          1        1.92       78.85
      18.96 |          1        1.92       80.77
      19.33 |          1        1.92       82.69
      19.39 |          1        1.92       84.62
      19.41 |          1        1.92       86.54
      19.64 |          1        1.92       88.46
      19.74 |          1        1.92       90.38
      19.83 |          1        1.92       92.31
      20.02 |          1        1.92       94.23
       21.3 |          1        1.92       96.15
      21.71 |          1        1.92       98.08
      22.77 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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