Frequencies for legampblci variable in pcstate2011 dataset :

        Leg |
amputations |
  per 1,000 |
   Medicare |
  enrollees |
Black Lower |
 confidence |
      limit |      Freq.     Percent        Cum.
------------+-----------------------------------
       .876 |          1        1.92        1.92
      1.029 |          1        1.92        3.85
      1.068 |          1        1.92        5.77
       1.13 |          1        1.92        7.69
      1.366 |          1        1.92        9.62
      1.454 |          1        1.92       11.54
       1.46 |          1        1.92       13.46
      1.589 |          1        1.92       15.38
      1.612 |          1        1.92       17.31
      1.631 |          1        1.92       19.23
      1.669 |          1        1.92       21.15
      1.822 |          1        1.92       23.08
      1.825 |          1        1.92       25.00
      1.845 |          1        1.92       26.92
      1.887 |          1        1.92       28.85
      1.906 |          1        1.92       30.77
      1.963 |          1        1.92       32.69
      2.142 |          1        1.92       34.62
      2.241 |          1        1.92       36.54
      2.259 |          1        1.92       38.46
      2.282 |          1        1.92       40.38
      2.401 |          1        1.92       42.31
      2.421 |          1        1.92       44.23
      2.594 |          1        1.92       46.15
       2.62 |          1        1.92       48.08
      2.855 |          1        1.92       50.00
      3.116 |          1        1.92       51.92
      3.117 |          1        1.92       53.85
      3.361 |          1        1.92       55.77
          . |         23       44.23      100.00
------------+-----------------------------------
      Total |         52      100.00

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