Frequencies for a_c1_18 variable in hosp_rollup2552_96_2011 dataset :

    a_c1_18 |      Freq.     Percent        Cum.
------------+-----------------------------------
       5382 |          1        3.45        3.45
       6753 |          1        3.45        6.90
       9859 |          1        3.45       10.34
      12311 |          1        3.45       13.79
      19918 |          1        3.45       17.24
      29724 |          1        3.45       20.69
      31823 |          1        3.45       24.14
      34470 |          1        3.45       27.59
      91646 |          1        3.45       31.03
      99690 |          1        3.45       34.48
     545437 |          1        3.45       37.93
          . |         18       62.07      100.00
------------+-----------------------------------
      Total |         29      100.00

by Jean Roth , jroth@nber.org , 21 Apr 2018