Frequencies for census variable in prds_hosp10_yr2015 dataset :

     census |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        137        2.19        2.19
          2 |        514        8.21       10.40
          3 |        857       13.69       24.10
          4 |        735       11.74       35.84
          5 |        825       13.18       49.03
          6 |        467        7.46       56.49
          7 |        943       15.07       71.56
          8 |        473        7.56       79.11
          9 |        586        9.36       88.48
         99 |        150        2.40       90.88
          . |        571        9.12      100.00
------------+-----------------------------------
      Total |      6,258      100.00

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