Frequencies for first 10,000 rows of meconium variable in natl2001 dataset :

 Meconium - |
moderate/he |
        avy |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        416        4.16        4.16
          2 |      9,582       95.82       99.98
          8 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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