Frequencies for a_c6_97 variable in prds_hosp10_yr2011 dataset :

    a_c6_97 |      Freq.     Percent        Cum.
------------+-----------------------------------
   -1929520 |          1        0.02        0.02
    -732866 |          1        0.02        0.03
    -585777 |          1        0.02        0.05
    -101186 |          1        0.02        0.07
     -67176 |          1        0.02        0.08
     -34000 |          1        0.02        0.10
     -23908 |          1        0.02        0.11
     -20709 |          1        0.02        0.13
     -19613 |          1        0.02        0.15
     -18795 |          1        0.02        0.16
     -16722 |          1        0.02        0.18
     -10586 |          1        0.02        0.20
      -6088 |          1        0.02        0.21
      -4839 |          1        0.02        0.23
      -2000 |          1        0.02        0.24
      -1986 |          1        0.02        0.26
      -1741 |          1        0.02        0.28
      -1121 |          1        0.02        0.29
       -577 |          1        0.02        0.31
        -19 |          1        0.02        0.33
         26 |          1        0.02        0.34
          . |      6,129       99.66      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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