Frequencies for a_c2_42 variable in prds_hosp10_yr2011 dataset :

    a_c2_42 |      Freq.     Percent        Cum.
------------+-----------------------------------
      19092 |          1        0.02        0.02
      41577 |          1        0.02        0.03
      45177 |          1        0.02        0.05
      62137 |          1        0.02        0.07
      85698 |          1        0.02        0.08
      89572 |          1        0.02        0.10
     186865 |          1        0.02        0.11
     260826 |          1        0.02        0.13
     268158 |          1        0.02        0.15
     394460 |          1        0.02        0.16
     408157 |          1        0.02        0.18
     424280 |          1        0.02        0.20
     995117 |          1        0.02        0.21
    1227584 |          2        0.03        0.24
    2199263 |          1        0.02        0.26
    3548171 |          1        0.02        0.28
    6718687 |          1        0.02        0.29
    7462062 |          1        0.02        0.31
          . |      6,131       99.69      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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