Frequencies for d3_irf_c2_40 variable in hcris2552_10_2012 dataset :

subprovider |
       -irf |
    d30c180 |
04000 00200 |      Freq.     Percent        Cum.
------------+-----------------------------------
        620 |          1        0.02        0.02
       3080 |          1        0.02        0.03
      16940 |          1        0.02        0.05
          . |      6,224       99.95      100.00
------------+-----------------------------------
      Total |      6,227      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018