nag_surviv_kaplanmeier (g12aac) Example Program Data 18 6.0 1 1 6.0 0 3 7.0 0 1 9.0 1 1 10.0 0 1 10.0 1 1 11.0 1 1 13.0 0 1 16.0 0 1 17.0 1 1 19.0 1 1 20.0 1 1 22.0 0 1 23.0 0 1 25.0 1 1 32.0 1 2 34.0 1 1 35.0 1 1