Frequencies for d3_hos_c3_97 variable in prds_hosp10_yr2016 dataset :

d3_hos_c3_9 |
          7 |      Freq.     Percent        Cum.
------------+-----------------------------------
        580 |          1        0.02        0.02
       1287 |          1        0.02        0.03
      17067 |          1        0.02        0.05
      49735 |          1        0.02        0.06
          . |      6,178       99.94      100.00
------------+-----------------------------------
      Total |      6,182      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018