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

  Ever told |
        had |
emphysema/a |
 sthma/COPD |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |         13        0.13        0.13
         -7 |          2        0.02        0.15
          1 |      2,032       20.32       20.47
          2 |      7,953       79.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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