Frequencies for s2_1_c2_1509 variable in prds_hosp10_yr2010 dataset :

s2_1_c2_150 |
          9 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,321       99.91       99.91
     268554 |          1        0.04       99.96
     393994 |          1        0.04      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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