Frequencies for mort30amiip variable in hvbp_outcome_10_28_2014 dataset :

  MORT-30-AMI |
  Improvement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
           0  |        414       13.40       13.40
           1  |         54        1.75       15.15
           2  |         51        1.65       16.80
           3  |         55        1.78       18.58
           4  |         68        2.20       20.78
           5  |         68        2.20       22.98
           6  |         56        1.81       24.80
           7  |         64        2.07       26.87
           8  |         77        2.49       29.36
           9  |        473       15.31       44.67
Not Available |      1,709       55.33      100.00
--------------+-----------------------------------
        Total |      3,089      100.00

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