Frequencies for first 10,000 rows of rectype variable in natlterr1999 dataset :

Record type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,702       37.02       37.02
          2 |      6,298       62.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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