Frequencies for first 10,000 rows of mpcb variable in natlterr2008 dataset :

      Month |
   Prenatal |
 Care Began |
        RFP |
669=f_mpcb_ |
        u U |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        357        3.57        3.57
          1 |        657        6.57       10.14
          2 |        963        9.63       19.77
          3 |        752        7.52       27.29
          4 |        529        5.29       32.58
          5 |        544        5.44       38.02
          6 |        313        3.13       41.15
          7 |        196        1.96       43.11
          8 |        180        1.80       44.91
          9 |        134        1.34       46.25
         99 |      1,436       14.36       60.61
          . |      3,939       39.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016