Frequencies for g2_c2_21 variable in hosp_rollup2552_96_2007 dataset :

   g2_c2_21 |      Freq.     Percent        Cum.
------------+-----------------------------------
       6880 |          1        0.02        0.02
      36252 |          1        0.02        0.03
    2047894 |          1        0.02        0.05
    2581708 |          1        0.02        0.06
    3095124 |          1        0.02        0.08
          . |      6,229       99.92      100.00
------------+-----------------------------------
      Total |      6,234      100.00

by Jean Roth , jroth@nber.org , 21 Apr 2018