Frequencies for first 10,000 rows of attend variable in natl2007 dataset :

  Attendant |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,252       72.52       72.52
          2 |        124        1.24       73.76
          3 |      1,296       12.96       86.72
          4 |      1,035       10.35       97.07
          5 |        139        1.39       98.46
          9 |        154        1.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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