Frequencies for first 10,000 rows of hlt_ecatarac variable in mcbsatc2013 datas

  Ever told |
        had |
  cataracts |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |         42        0.42        0.42
         -7 |          1        0.01        0.43
          1 |      5,409       54.09       54.52
          2 |      3,486       34.86       89.38
          . |      1,062       10.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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