Frequencies for legampwlci variable in pccounty2012 dataset :

        Leg |
amputations |
  per 1,000 |
   Medicare |
  enrollees |
White Lower |
 confidence |
      limit |      Freq.     Percent        Cum.
------------+-----------------------------------
       .122 |          1        0.03        0.03
       .138 |          1        0.03        0.06
        .14 |          1        0.03        0.10
       .145 |          1        0.03        0.13
        .17 |          1        0.03        0.16
       .201 |          1        0.03        0.19
       .205 |          1        0.03        0.22
       .208 |          1        0.03        0.25
       .219 |          1        0.03        0.29
       .224 |          1        0.03        0.32
       .242 |          1        0.03        0.35
       .256 |          1        0.03        0.38
       .276 |          1        0.03        0.41
       .298 |          1        0.03        0.45
       .299 |          1        0.03        0.48
       .314 |          1        0.03        0.51
       .317 |          1        0.03        0.54
       .321 |          1        0.03        0.57
       .323 |          1        0.03        0.60
       .334 |          1        0.03        0.64
       .343 |          1        0.03        0.67
        .36 |          1        0.03        0.70
       .366 |          1        0.03        0.73
       .367 |          1        0.03        0.76
       .372 |          2        0.06        0.83
       .379 |          1        0.03        0.86
       .388 |          1        0.03        0.89
       .407 |          1        0.03        0.92
       .415 |          1        0.03        0.96
       .416 |          1        0.03        0.99
       .431 |          1        0.03        1.02
       .441 |          1        0.03        1.05
       .449 |          1        0.03        1.08
       .466 |          1        0.03        1.11
       .476 |          1        0.03        1.15
       .482 |          1        0.03        1.18
       .518 |          1        0.03        1.21
       .593 |          1        0.03        1.24
          . |      3,102       98.76      100.00
------------+-----------------------------------
      Total |      3,141      100.00

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