Frequencies for first 10,000 rows of hlt_echelp variable in mcbsatc2013 dataset

       Wear |
eyeglasses/ |
    contact |
     lenses |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,437       84.37       84.37
          2 |      1,498       14.98       99.35
          . |         65        0.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 May 2016