Frequencies for first 10,000 rows of rectype variable in natl1983 dataset :

Record type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,701       77.01       77.01
          2 |      2,299       22.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016