Frequencies for psi_90_safety_better variable in vwhqi_hosp_ahrq_state dataset :

PSI_90_SAFE |
  TY_BETTER |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         21       37.50       37.50
          1 |         10       17.86       55.36
          2 |          8       14.29       69.64
          3 |          4        7.14       76.79
          5 |          2        3.57       80.36
          6 |          2        3.57       83.93
          7 |          1        1.79       85.71
          8 |          1        1.79       87.50
         11 |          1        1.79       89.29
          . |          6       10.71      100.00
------------+-----------------------------------
      Total |         56      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016