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

       Quit |
 smoking in |
   the last |
       year |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |          7        0.07        0.07
         -7 |          1        0.01        0.08
          1 |        644        6.44        6.52
          2 |        663        6.63       13.15
          . |      8,685       86.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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