Frequencies for first 10,000 rows of meconium variable in natl1998 dataset :

 Meconium - |
moderate/he |
        avy |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        470        4.70        4.70
          2 |      9,529       95.29       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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