Frequencies for first 10,000 rows of castage variable in nhamcsopd2010 dataset :

     what is the stage of the |
            patient's cancer? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
             no box is marked |         35        0.35        0.35
                unknown stage |        486        4.86        5.21
               not applicable |      9,282       92.82       98.03
                      in situ |         41        0.41       98.44
                      stage 1 |         22        0.22       98.66
                     stage ii |         25        0.25       98.91
                    stage iii |         28        0.28       99.19
                     stage iv |         81        0.81      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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