Frequencies for a_c1_111 variable in prds_hosp10_yr2013 dataset :

   a_c1_111 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2618 |          1        0.02        0.02
      35272 |          1        0.02        0.03
      75048 |          1        0.02        0.05
     281429 |          1        0.02        0.06
          . |      6,244       99.94      100.00
------------+-----------------------------------
      Total |      6,248      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018