Frequencies for d_4_hos_c4_91 variable in prds_hosp10_yr2011 dataset :

d_4_hos_c4_ |
         91 |      Freq.     Percent        Cum.
------------+-----------------------------------
      36114 |          1        0.02        0.02
      79790 |          1        0.02        0.03
      90441 |          1        0.02        0.05
     101525 |          1        0.02        0.07
     232607 |          1        0.02        0.08
     419518 |          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