Frequencies for a_c2_111 variable in prds_hosp10_yr2011 dataset :

   a_c2_111 |      Freq.     Percent        Cum.
------------+-----------------------------------
      -9770 |          1        0.02        0.02
      -3220 |          1        0.02        0.03
      88530 |          1        0.02        0.05
     397925 |          1        0.02        0.07
     608067 |          1        0.02        0.08
          . |      6,145       99.92      100.00
------------+-----------------------------------
      Total |      6,150      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018