Frequencies for scipcard2ip variable in hvbp_scip_08_06_2015 dataset :

  SCIP-Card-2 |
  Improvement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
           0  |      1,126       36.83       36.83
           1  |         67        2.19       39.03
           2  |         79        2.58       41.61
           3  |        102        3.34       44.95
           4  |        115        3.76       48.71
           5  |        144        4.71       53.42
           6  |        164        5.36       58.78
           7  |        206        6.74       65.52
           8  |        164        5.36       70.89
           9  |        531       17.37       88.26
Not Available |        359       11.74      100.00
--------------+-----------------------------------
        Total |      3,057      100.00

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