Frequencies for legampbuci variable in pchsa2013 dataset :

        Leg |
amputations |
  per 1,000 |
   Medicare |
  enrollees |
Black Upper |
 confidence |
      limit |      Freq.     Percent        Cum.
------------+-----------------------------------
     -7.264 |          1        0.03        0.03
     -6.661 |          1        0.03        0.06
     -6.373 |          1        0.03        0.09
     -5.671 |          1        0.03        0.12
     -5.611 |          1        0.03        0.15
     -5.431 |          1        0.03        0.17
     -5.358 |          1        0.03        0.20
     -5.163 |          1        0.03        0.23
     -5.093 |          1        0.03        0.26
     -4.994 |          1        0.03        0.29
     -4.965 |          1        0.03        0.32
     -4.959 |          1        0.03        0.35
     -4.798 |          1        0.03        0.38
     -4.465 |          1        0.03        0.41
     -4.441 |          1        0.03        0.44
     -4.372 |          1        0.03        0.47
     -4.068 |          1        0.03        0.49
     -3.894 |          1        0.03        0.52
     -3.837 |          1        0.03        0.55
     -3.728 |          1        0.03        0.58
     -3.577 |          1        0.03        0.61
       -3.3 |          1        0.03        0.64
     -3.282 |          1        0.03        0.67
     -3.271 |          1        0.03        0.70
     -3.219 |          1        0.03        0.73
     -3.207 |          1        0.03        0.76
     -3.046 |          1        0.03        0.79
     -3.037 |          1        0.03        0.81
     -2.974 |          1        0.03        0.84
     -2.971 |          1        0.03        0.87
     -2.884 |          1        0.03        0.90
     -2.833 |          1        0.03        0.93
      -2.81 |          1        0.03        0.96
     -2.745 |          1        0.03        0.99
     -2.649 |          1        0.03        1.02
     -2.526 |          1        0.03        1.05
     -2.496 |          1        0.03        1.08
     -2.492 |          1        0.03        1.11
     -2.434 |          1        0.03        1.13
     -2.374 |          1        0.03        1.16
     -2.317 |          1        0.03        1.19
     -2.269 |          1        0.03        1.22
     -2.251 |          1        0.03        1.25
     -1.886 |          1        0.03        1.28
      1.322 |          1        0.03        1.31
      1.457 |          1        0.03        1.34
      1.551 |          1        0.03        1.37
      1.687 |          1        0.03        1.40
       1.79 |          1        0.03        1.43
      1.808 |          1        0.03        1.45
      1.954 |          1        0.03        1.48
      1.956 |          1        0.03        1.51
      2.107 |          1        0.03        1.54
      2.118 |          1        0.03        1.57
       2.15 |          1        0.03        1.60
       2.27 |          1        0.03        1.63
      2.405 |          1        0.03        1.66
      2.412 |          1        0.03        1.69
      2.462 |          1        0.03        1.72
      2.639 |          1        0.03        1.75
      2.658 |          1        0.03        1.77
      2.814 |          1        0.03        1.80
      2.938 |          1        0.03        1.83
      2.983 |          1        0.03        1.86
      3.656 |          1        0.03        1.89
          . |      3,372       98.11      100.00
------------+-----------------------------------
      Total |      3,437      100.00

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