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

  Number of |
      years |
 previously |
     smoked |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |        276        2.76        2.76
         -7 |          6        0.06        2.82
          1 |        284        2.84        5.66
          2 |        815        8.15       13.81
          3 |      3,120       31.20       45.01
          . |      5,499       54.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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