Frequencies for first 10,000 rows of ruclas13 variable in h84 dataset :

 RU FIELDED |
        AS: |
  STANDARD, |
       NEW, |
    STUDENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,675       96.75       96.75
          2 |        292        2.92       99.67
          3 |         33        0.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Feb 2018