Frequencies for d_4_hos_c2_68 variable in prds_hosp10_yr2011 dataset :

d_4_hos_c2_ |
         68 |      Freq.     Percent        Cum.
------------+-----------------------------------
      19153 |          1        0.02        0.02
      63487 |          1        0.02        0.03
      86504 |          1        0.02        0.05
          . |      6,147       99.95      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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