Frequencies for legampbuci variable in pcstate2013 dataset :

        Leg |
amputations |
  per 1,000 |
   Medicare |
  enrollees |
Black Upper |
 confidence |
      limit |      Freq.     Percent        Cum.
------------+-----------------------------------
     -3.878 |          1        1.92        1.92
     -2.402 |          1        1.92        3.85
     -2.008 |          1        1.92        5.77
      1.359 |          1        1.92        7.69
      1.544 |          1        1.92        9.62
      1.684 |          1        1.92       11.54
      1.704 |          1        1.92       13.46
      1.837 |          1        1.92       15.38
      1.886 |          1        1.92       17.31
      1.905 |          1        1.92       19.23
      1.974 |          1        1.92       21.15
      2.237 |          1        1.92       23.08
      2.316 |          1        1.92       25.00
      2.381 |          1        1.92       26.92
      2.388 |          1        1.92       28.85
        2.4 |          1        1.92       30.77
      2.429 |          1        1.92       32.69
      2.443 |          1        1.92       34.62
      2.451 |          1        1.92       36.54
       2.53 |          1        1.92       38.46
      2.646 |          1        1.92       40.38
      2.733 |          1        1.92       42.31
      2.747 |          1        1.92       44.23
      2.788 |          1        1.92       46.15
      2.793 |          1        1.92       48.08
      2.895 |          1        1.92       50.00
      3.044 |          1        1.92       51.92
      3.176 |          1        1.92       53.85
      3.496 |          1        1.92       55.77
      4.223 |          1        1.92       57.69
          . |         22       42.31      100.00
------------+-----------------------------------
      Total |         52      100.00

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