Frequencies for d3_irf_c2_61 variable in hcris2552_10_2011 dataset :

        pbp |
   clinical |
        lab |
   services |
    program |
       only |
    d30c180 |
06100 00200 |      Freq.     Percent        Cum.
------------+-----------------------------------
     908332 |          1        0.02        0.02
          . |      6,149       99.98      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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