Frequencies for first 10,000 rows of castage variable in namcs2006 dataset :

   what is the |
      stage of |
     patient's |
       cancer? |      Freq.     Percent        Cum.
---------------+-----------------------------------
       in situ |         59        0.59        0.59
         local |         87        0.87        1.46
      regional |         38        0.38        1.84
       distant |         19        0.19        2.03
       unknown |        186        1.86        3.89
not applicable |      9,611       96.11      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016