Frequencies for scipinf9ip variable in hvbp_hai_08_26_2016 dataset :

   SCIP-Inf-9 |
  Improvement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
           0  |        862       28.55       28.55
           1  |         74        2.45       31.00
           2  |        113        3.74       34.75
           3  |        109        3.61       38.36
           4  |        115        3.81       42.17
           5  |        169        5.60       47.76
           6  |        187        6.19       53.96
           7  |        228        7.55       61.51
           8  |        218        7.22       68.73
           9  |        641       21.23       89.96
Not Available |        303       10.04      100.00
--------------+-----------------------------------
        Total |      3,019      100.00

by Jean Roth , jroth@nber.org , 15 Nov 2016