Frequencies for pn6ip variable in hvbp_pn_06_08_2016 dataset :

         PN-6 |
  Improvement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
           0  |      1,280       42.26       42.26
           1  |        117        3.86       46.12
           2  |        130        4.29       50.41
           3  |        143        4.72       55.13
           4  |        144        4.75       59.89
           5  |        151        4.99       64.87
           6  |        180        5.94       70.82
           7  |        150        4.95       75.77
           8  |         92        3.04       78.80
           9  |        443       14.63       93.43
Not Available |        199        6.57      100.00
--------------+-----------------------------------
        Total |      3,029      100.00

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