Frequencies for first 10,000 rows of rectype variable in natlterr2010 dataset :

Record Type |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,046       60.46       60.46
          2 |      3,954       39.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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