nag_surviv_kaplanmeier (g12aac) Example Program Results

   Time   Survival    Standard
         probability  deviation

    6.0     0.857       0.076
    7.0     0.807       0.087
   10.0     0.753       0.096
   13.0     0.690       0.107
   16.0     0.627       0.114
   22.0     0.538       0.128
   23.0     0.448       0.135