Frequencies for pn6ip variable in hvbp_pn_02_18_2016 dataset :

         PN-6 |
  Improvement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
           0  |      1,285       42.26       42.26
           1  |        118        3.88       46.14
           2  |        131        4.31       50.44
           3  |        143        4.70       55.15
           4  |        145        4.77       59.91
           5  |        152        5.00       64.91
           6  |        180        5.92       70.83
           7  |        150        4.93       75.76
           8  |         93        3.06       78.82
           9  |        444       14.60       93.42
Not Available |        200        6.58      100.00
--------------+-----------------------------------
        Total |      3,041      100.00

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