Frequencies for legampbuci variable in pchrr2009 dataset :

        Leg |
amputations |
  per 1,000 |
   Medicare |
  enrollees |
Black Upper |
 confidence |
      limit |      Freq.     Percent        Cum.
------------+-----------------------------------
    -10.369 |          1        0.33        0.33
      -9.12 |          1        0.33        0.65
     -8.957 |          1        0.33        0.98
     -8.378 |          1        0.33        1.30
     -7.941 |          1        0.33        1.63
     -7.704 |          1        0.33        1.95
     -7.242 |          1        0.33        2.28
     -7.175 |          1        0.33        2.61
     -7.171 |          1        0.33        2.93
     -6.792 |          1        0.33        3.26
     -6.144 |          1        0.33        3.58
     -6.059 |          1        0.33        3.91
     -5.951 |          1        0.33        4.23
     -5.825 |          1        0.33        4.56
     -5.754 |          1        0.33        4.89
      -5.66 |          1        0.33        5.21
     -5.417 |          1        0.33        5.54
     -5.171 |          1        0.33        5.86
     -5.165 |          1        0.33        6.19
     -5.154 |          1        0.33        6.51
     -5.101 |          1        0.33        6.84
     -5.072 |          1        0.33        7.17
     -5.061 |          1        0.33        7.49
     -5.059 |          1        0.33        7.82
     -4.909 |          1        0.33        8.14
     -4.624 |          1        0.33        8.47
     -4.622 |          1        0.33        8.79
     -4.449 |          1        0.33        9.12
     -4.379 |          1        0.33        9.45
     -4.259 |          1        0.33        9.77
     -4.126 |          1        0.33       10.10
     -3.866 |          1        0.33       10.42
     -3.737 |          1        0.33       10.75
     -3.602 |          1        0.33       11.07
     -3.253 |          1        0.33       11.40
     -3.174 |          1        0.33       11.73
     -3.167 |          1        0.33       12.05
     -3.143 |          1        0.33       12.38
     -2.931 |          1        0.33       12.70
     -2.914 |          1        0.33       13.03
     -2.781 |          1        0.33       13.36
      1.751 |          1        0.33       13.68
      2.047 |          1        0.33       14.01
      2.378 |          1        0.33       14.33
      2.398 |          1        0.33       14.66
      2.435 |          1        0.33       14.98
      2.552 |          1        0.33       15.31
      2.553 |          1        0.33       15.64
      2.554 |          1        0.33       15.96
      2.565 |          1        0.33       16.29
      2.651 |          1        0.33       16.61
      2.678 |          1        0.33       16.94
      2.683 |          1        0.33       17.26
      2.773 |          1        0.33       17.59
      2.782 |          1        0.33       17.92
      2.842 |          1        0.33       18.24
      2.869 |          1        0.33       18.57
      2.883 |          1        0.33       18.89
      2.885 |          1        0.33       19.22
      2.903 |          1        0.33       19.54
      2.913 |          1        0.33       19.87
      2.921 |          1        0.33       20.20
      3.109 |          1        0.33       20.52
      3.188 |          1        0.33       20.85
      3.211 |          1        0.33       21.17
      3.281 |          1        0.33       21.50
      3.296 |          1        0.33       21.82
      3.346 |          1        0.33       22.15
      3.351 |          1        0.33       22.48
      3.367 |          1        0.33       22.80
      3.383 |          1        0.33       23.13
      3.387 |          1        0.33       23.45
      3.437 |          1        0.33       23.78
      3.517 |          1        0.33       24.10
      3.581 |          1        0.33       24.43
      3.638 |          1        0.33       24.76
      3.647 |          1        0.33       25.08
      3.649 |          1        0.33       25.41
      3.662 |          1        0.33       25.73
      3.693 |          1        0.33       26.06
      3.702 |          1        0.33       26.38
      3.721 |          1        0.33       26.71
      3.864 |          1        0.33       27.04
      3.894 |          1        0.33       27.36
      3.951 |          2        0.65       28.01
      4.028 |          1        0.33       28.34
      4.146 |          1        0.33       28.66
       4.24 |          1        0.33       28.99
      4.382 |          1        0.33       29.32
       4.39 |          1        0.33       29.64
      4.391 |          1        0.33       29.97
      4.452 |          1        0.33       30.29
      4.455 |          1        0.33       30.62
      4.473 |          1        0.33       30.94
      4.525 |          1        0.33       31.27
      4.531 |          1        0.33       31.60
      4.717 |          1        0.33       31.92
      5.634 |          1        0.33       32.25
      5.882 |          1        0.33       32.57
      6.224 |          1        0.33       32.90
      6.454 |          1        0.33       33.22
          . |        205       66.78      100.00
------------+-----------------------------------
      Total |        307      100.00

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