Frequencies for s2_1_c2_1804 variable in prds_hosp10_yr2010 dataset :

s2_1_c2_180 |
          4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,317       99.74       99.74
     163510 |          1        0.04       99.78
     243531 |          1        0.04       99.83
     243534 |          1        0.04       99.87
     393506 |          1        0.04       99.91
     492301 |          1        0.04       99.96
     532302 |          1        0.04      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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