Frequencies for legampbuci variable in pcstate2011 dataset :

        Leg |
amputations |
  per 1,000 |
   Medicare |
  enrollees |
Black Upper |
 confidence |
      limit |      Freq.     Percent        Cum.
------------+-----------------------------------
      1.804 |          1        1.92        1.92
      2.085 |          1        1.92        3.85
      2.098 |          1        1.92        5.77
      2.127 |          1        1.92        7.69
      2.326 |          1        1.92        9.62
      2.345 |          1        1.92       11.54
      2.379 |          1        1.92       13.46
      2.469 |          1        1.92       15.38
      2.476 |          1        1.92       17.31
      2.539 |          1        1.92       19.23
      2.553 |          1        1.92       21.15
      2.567 |          1        1.92       23.08
      2.569 |          1        1.92       25.00
      2.716 |          1        1.92       26.92
      2.804 |          1        1.92       28.85
      2.812 |          1        1.92       30.77
      2.944 |          1        1.92       32.69
      2.996 |          1        1.92       34.62
      3.011 |          1        1.92       36.54
      3.148 |          1        1.92       38.46
      3.155 |          1        1.92       40.38
      3.206 |          1        1.92       42.31
       3.21 |          1        1.92       44.23
      3.629 |          1        1.92       46.15
      3.713 |          1        1.92       48.08
      3.773 |          1        1.92       50.00
      3.899 |          1        1.92       51.92
       3.98 |          1        1.92       53.85
       4.24 |          1        1.92       55.77
          . |         23       44.23      100.00
------------+-----------------------------------
      Total |         52      100.00

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