Frequencies for c_1_c2_52 variable in hosp_rollup2552_96_2000 dataset :

  c_1_c2_52 |      Freq.     Percent        Cum.
------------+-----------------------------------
        196 |          1        0.02        0.02
        314 |          1        0.02        0.03
       1473 |          1        0.02        0.05
       1687 |          1        0.02        0.07
      22853 |          1        0.02        0.08
          . |      6,090       99.92      100.00
------------+-----------------------------------
      Total |      6,095      100.00

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