Frequencies for a_c2_99 variable in prds_hosp10_yr2011 dataset :

    a_c2_99 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1084 |          1        0.02        0.02
       1358 |          1        0.02        0.03
       3844 |          1        0.02        0.05
     162438 |          1        0.02        0.07
     239290 |          1        0.02        0.08
     504997 |          1        0.02        0.10
          . |      6,144       99.90      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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