Frequencies for a_c2_54 variable in hosp_rollup2552_96_2011 dataset :

    a_c2_54 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1590 |          1        3.45        3.45
       2754 |          1        3.45        6.90
      22810 |          1        3.45       10.34
      57089 |          1        3.45       13.79
          . |         25       86.21      100.00
------------+-----------------------------------
      Total |         29      100.00

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