Frequencies for d_4_hos_c8_40 variable in hosp_rollup2552_96_2011 dataset :

d_4_hos_c8_ |
         40 |      Freq.     Percent        Cum.
------------+-----------------------------------
      24592 |          1        3.57        3.57
      53004 |          1        3.57        7.14
     126060 |          1        3.57       10.71
     794610 |          1        3.57       14.29
     981160 |          1        3.57       17.86
    1015940 |          1        3.57       21.43
    2042238 |          1        3.57       25.00
          . |         21       75.00      100.00
------------+-----------------------------------
      Total |         28      100.00

by Jean Roth , jroth@nber.org , 20 Jan 2017