Frequencies for mort30pnip variable in hvbp_outcome_10_28_2014 dataset :

   MORT-30-PN |
  Improvement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
           0  |      1,232       39.88       39.88
           1  |        121        3.92       43.80
           2  |        138        4.47       48.27
           3  |        141        4.56       52.83
           4  |        143        4.63       57.46
           5  |        136        4.40       61.86
           6  |        141        4.56       66.43
           7  |        109        3.53       69.96
           8  |         82        2.65       72.61
           9  |        222        7.19       79.80
Not Available |        624       20.20      100.00
--------------+-----------------------------------
        Total |      3,089      100.00

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