Frequencies for first 10,000 rows of grwthdev variable in nhamcsopd2002 dataset :

growth/deve |
    lopment |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,594       95.94       95.94
          1 |        406        4.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016