Frequencies for s5_c3_2 variable in hcris2552_10_2011 dataset :

    patient |
   receives |
   dialysis |
    s500000 |
00200 00300 |      Freq.     Percent        Cum.
------------+-----------------------------------
          3 |         11        0.18        0.18
          4 |          1        0.02        0.20
          5 |          7        0.11        0.31
          6 |          4        0.07        0.37
          . |      6,127       99.63      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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