Frequencies for a8_c2_3 variable in hosp_rollup2552_96_2011 dataset :

    a8_c2_3 |      Freq.     Percent        Cum.
------------+-----------------------------------
      -5392 |          1        3.45        3.45
       -490 |          1        3.45        6.90
        -81 |          1        3.45       10.34
         -2 |          1        3.45       13.79
          . |         25       86.21      100.00
------------+-----------------------------------
      Total |         29      100.00

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