Frequencies for a_c2_9 variable in hosp_rollup2552_96_2011 dataset :

     a_c2_9 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2455 |          1        3.45        3.45
       3754 |          1        3.45        6.90
       6426 |          1        3.45       10.34
       9931 |          1        3.45       13.79
      10945 |          1        3.45       17.24
      11769 |          1        3.45       20.69
      12616 |          1        3.45       24.14
      16411 |          1        3.45       27.59
      17869 |          1        3.45       31.03
      18558 |          1        3.45       34.48
      22095 |          1        3.45       37.93
      23194 |          1        3.45       41.38
      32862 |          1        3.45       44.83
      35615 |          1        3.45       48.28
      63783 |          1        3.45       51.72
     114981 |          1        3.45       55.17
     143521 |          1        3.45       58.62
     149946 |          1        3.45       62.07
     178828 |          2        6.90       68.97
     224180 |          1        3.45       72.41
     279422 |          1        3.45       75.86
     308867 |          1        3.45       79.31
          . |          6       20.69      100.00
------------+-----------------------------------
      Total |         29      100.00

by Jean Roth , jroth@nber.org , 21 Apr 2018