Frequencies for first 10,000 rows of mpcb variable in natlterr2010 dataset :

      Month |
   Prenatal |
 Care Began |
        RFP |
669=f_mpcb_ |
        u U |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        265        2.65        2.65
          1 |        818        8.18       10.83
          2 |        714        7.14       17.97
          3 |        605        6.05       24.02
          4 |        348        3.48       27.50
          5 |        295        2.95       30.45
          6 |        167        1.67       32.12
          7 |        115        1.15       33.27
          8 |         47        0.47       33.74
          9 |         37        0.37       34.11
         99 |      1,245       12.45       46.56
          . |      5,344       53.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015