Frequencies for e3_4_hos_c1_20 variable in prds_hosp10_yr2011 dataset :

e3_4_hos_c1 |
        _20 |      Freq.     Percent        Cum.
------------+-----------------------------------
    -638365 |          1        0.02        0.02
     502248 |          1        0.02        0.03
     700805 |          1        0.02        0.05
     838082 |          1        0.02        0.07
          . |      6,146       99.93      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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