Frequencies for d3_snf_c2_31 variable in prds_hosp10_yr2010 dataset :

d3_snf_c2_3 |
          1 |      Freq.     Percent        Cum.
------------+-----------------------------------
        159 |          1        0.04        0.04
       1547 |          1        0.04        0.09
       3407 |          1        0.04        0.13
      10745 |          1        0.04        0.17
          . |      2,319       99.83      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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