Frequencies for psi_4_surg_comp_samestr variable in vwhqi_hosp_ahrq_state dataset :

PSI_4_SURG_CO |
      MP_SAME |      Freq.     Percent        Cum.
--------------+-----------------------------------
          119 |          1        1.79        1.79
           12 |          2        3.57        5.36
           13 |          1        1.79        7.14
           15 |          1        1.79        8.93
          150 |          1        1.79       10.71
           18 |          1        1.79       12.50
           19 |          2        3.57       16.07
          192 |          1        1.79       17.86
            2 |          1        1.79       19.64
           21 |          1        1.79       21.43
           22 |          1        1.79       23.21
           23 |          2        3.57       26.79
           24 |          1        1.79       28.57
           25 |          1        1.79       30.36
            3 |          1        1.79       32.14
           31 |          2        3.57       35.71
           35 |          2        3.57       39.29
           36 |          1        1.79       41.07
           37 |          1        1.79       42.86
           40 |          1        1.79       44.64
           41 |          1        1.79       46.43
           42 |          1        1.79       48.21
           43 |          1        1.79       50.00
           44 |          1        1.79       51.79
           46 |          1        1.79       53.57
            5 |          2        3.57       57.14
           52 |          1        1.79       58.93
           53 |          1        1.79       60.71
           56 |          1        1.79       62.50
           57 |          2        3.57       66.07
            6 |          2        3.57       69.64
            7 |          3        5.36       75.00
           87 |          1        1.79       76.79
           88 |          2        3.57       80.36
            9 |          4        7.14       87.50
           90 |          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