Frequencies for s3_2_c3_22 variable in prds_hosp10_yr2012 dataset :

 s3_2_c3_22 |      Freq.     Percent        Cum.
------------+-----------------------------------
   -3740860 |          1        0.02        0.02
    -305632 |          1        0.02        0.03
       4885 |          1        0.02        0.05
     138867 |          1        0.02        0.06
    3025923 |          1        0.02        0.08
    3489671 |          1        0.02        0.10
    9112500 |          1        0.02        0.11
          . |      6,220       99.89      100.00
------------+-----------------------------------
      Total |      6,227      100.00

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