Frequencies for s2_1_c2_1806 variable in prds_hosp10_yr2015 dataset :

s2_1_c2_180 |
          6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,253       99.92       99.92
     243526 |          1        0.02       99.94
     243535 |          1        0.02       99.95
     333568 |          1        0.02       99.97
     493513 |          1        0.02       99.98
     523532 |          1        0.02      100.00
------------+-----------------------------------
      Total |      6,258      100.00

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