Frequencies for a_c6_50 variable in hosp_rollup2552_96_2011 dataset :

    a_c6_50 |      Freq.     Percent        Cum.
------------+-----------------------------------
     -33537 |          1        3.45        3.45
     -25696 |          1        3.45        6.90
      -9892 |          1        3.45       10.34
      -8234 |          1        3.45       13.79
      -1133 |          1        3.45       17.24
          . |         24       82.76      100.00
------------+-----------------------------------
      Total |         29      100.00

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