Frequencies for d_4_hos_c2_70 variable in prds_hosp10_yr2012 dataset :

d_4_hos_c2_ |
         70 |      Freq.     Percent        Cum.
------------+-----------------------------------
        450 |          1        0.02        0.02
        486 |          1        0.02        0.03
       1705 |          1        0.02        0.05
       5552 |          1        0.02        0.06
          . |      6,223       99.94      100.00
------------+-----------------------------------
      Total |      6,227      100.00

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