Frequencies for d_4_hos_c2_88 variable in prds_hosp10_yr2013 dataset :

d_4_hos_c2_ |
         88 |      Freq.     Percent        Cum.
------------+-----------------------------------
      24659 |          1        0.02        0.02
      39122 |          1        0.02        0.03
     187522 |          1        0.02        0.05
          . |      6,245       99.95      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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