Frequencies for d3_irf_c2_40 variable in prds_hosp10_yr2015 dataset :

d3_irf_c2_4 |
          0 |      Freq.     Percent        Cum.
------------+-----------------------------------
         34 |          1        0.02        0.02
        164 |          1        0.02        0.03
       1369 |          1        0.02        0.05
       2266 |          1        0.02        0.06
       2982 |          1        0.02        0.08
          . |      6,253       99.92      100.00
------------+-----------------------------------
      Total |      6,258      100.00

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