Frequencies for first 10,000 rows of attend variable in natl1986 dataset :

  Person in |
 Attendance |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,906       99.06       99.06
          2 |         47        0.47       99.53
          3 |         41        0.41       99.94
          9 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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