Frequencies for d_4_irf_c11_9201 variable in prds_hosp10_yr2015 dataset :

d_4_irf_c11 |
      _9201 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
          2 |          2        0.03        0.05
          3 |          1        0.02        0.06
          6 |          1        0.02        0.08
          9 |          2        0.03        0.11
         11 |          1        0.02        0.13
         48 |          1        0.02        0.14
          . |      6,249       99.86      100.00
------------+-----------------------------------
      Total |      6,258      100.00

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