Frequencies for c_1_c2_51 variable in hosp_rollup2552_96_2001 dataset :

  c_1_c2_51 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2676 |          1        0.02        0.02
       2868 |          1        0.02        0.03
       3367 |          1        0.02        0.05
       3846 |          1        0.02        0.07
       8570 |          1        0.02        0.08
          . |      6,060       99.92      100.00
------------+-----------------------------------
      Total |      6,065      100.00

by Jean Roth , jroth@nber.org , 9 Sep 2018