Frequencies for psi_90_safety_toofewstr variable in vwhqi_hosp_ahrq_state datas

PSI_90_SAFETY |
      _TOOFEW |      Freq.     Percent        Cum.
--------------+-----------------------------------
            0 |         50       89.29       89.29
Not Available |          6       10.71      100.00
--------------+-----------------------------------
        Total |         56      100.00

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