Frequencies for legampblci variable in pcstate2006_2007 dataset :

        Leg |
amputations |
  per 1,000 |
   Medicare |
  enrollees |
Black Lower |
 confidence |
      limit |      Freq.     Percent        Cum.
------------+-----------------------------------
      .5361 |          1        1.92        1.92
      .6321 |          1        1.92        3.85
      .6427 |          1        1.92        5.77
       .773 |          1        1.92        7.69
     1.3594 |          1        1.92        9.62
     1.3999 |          1        1.92       11.54
     1.5953 |          1        1.92       13.46
      1.718 |          1        1.92       15.38
      1.994 |          1        1.92       17.31
     2.1677 |          1        1.92       19.23
     2.1833 |          1        1.92       21.15
      2.212 |          1        1.92       23.08
     2.3004 |          1        1.92       25.00
     2.3059 |          1        1.92       26.92
     2.3965 |          1        1.92       28.85
     2.4533 |          1        1.92       30.77
     2.4894 |          1        1.92       32.69
     2.5019 |          1        1.92       34.62
     2.5056 |          1        1.92       36.54
     2.5388 |          1        1.92       38.46
     2.7089 |          1        1.92       40.38
     2.7764 |          1        1.92       42.31
     2.7997 |          1        1.92       44.23
     3.1887 |          1        1.92       46.15
     3.2281 |          1        1.92       48.08
      3.238 |          1        1.92       50.00
     3.2884 |          1        1.92       51.92
     3.3187 |          1        1.92       53.85
     3.8399 |          1        1.92       55.77
     4.0445 |          1        1.92       57.69
     4.1785 |          1        1.92       59.62
     4.2407 |          1        1.92       61.54
     4.5445 |          1        1.92       63.46
     4.7019 |          1        1.92       65.38
     4.8096 |          1        1.92       67.31
          . |         17       32.69      100.00
------------+-----------------------------------
      Total |         52      100.00

by Jean Roth , jroth@nber.org , 15 Mar 2018