Frequencies for psi_90_safety_betterstr variable in vwhqi_hosp_ahrq_state datas

PSI_90_SAFETY |
      _BETTER |      Freq.     Percent        Cum.
--------------+-----------------------------------
            0 |         18       32.14       32.14
            1 |          8       14.29       46.43
           10 |          1        1.79       48.21
            2 |          5        8.93       57.14
            3 |          7       12.50       69.64
            4 |          4        7.14       76.79
            5 |          3        5.36       82.14
            6 |          1        1.79       83.93
            7 |          2        3.57       87.50
            8 |          1        1.79       89.29
Not Available |          6       10.71      100.00
--------------+-----------------------------------
        Total |         56      100.00

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