Frequencies for e3_4_hos_c1_20 variable in prds_hosp10_yr2012 dataset :

e3_4_hos_c1 |
        _20 |      Freq.     Percent        Cum.
------------+-----------------------------------
   -1163851 |          1        0.02        0.02
    -766520 |          1        0.02        0.03
    1767092 |          1        0.02        0.05
          . |      6,224       99.95      100.00
------------+-----------------------------------
      Total |      6,227      100.00

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