Frequencies for s3_2_c4_20 variable in prds_hosp10_yr2010 dataset :

 s3_2_c4_20 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2149 |          1        0.04        0.04
       7471 |          1        0.04        0.09
      11054 |          1        0.04        0.13
      14701 |          1        0.04        0.17
      19508 |          1        0.04        0.22
      19621 |          1        0.04        0.26
      20551 |          1        0.04        0.30
      25178 |          1        0.04        0.34
      35390 |          1        0.04        0.39
      41223 |          1        0.04        0.43
      56894 |          1        0.04        0.47
      61733 |          1        0.04        0.52
      66676 |          1        0.04        0.56
      79565 |          1        0.04        0.60
      82405 |          1        0.04        0.65
     109678 |          1        0.04        0.69
     138884 |          1        0.04        0.73
     148705 |          1        0.04        0.77
     175568 |          1        0.04        0.82
    1545037 |          1        0.04        0.86
    1717192 |          1        0.04        0.90
          . |      2,302       99.10      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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