Frequencies for c_1_c2_51 variable in hosp_rollup2552_96_2000 dataset :

  c_1_c2_51 |      Freq.     Percent        Cum.
------------+-----------------------------------
       3294 |          1        0.02        0.02
       5160 |          1        0.02        0.03
          . |      6,093       99.97      100.00
------------+-----------------------------------
      Total |      6,095      100.00

by Jean Roth , jroth@nber.org , 8 Sep 2018