"y" "dose" "rand" 15 0 1 21 0 2 29 0 3 16 10 4 18 10 5 21 10 6 16 33 7 26 33 8 33 33 9 27 100 10 41 100 11 60 100 12 33 333 13 38 333 14 41 333 15 20 1000 16 27 1000 17 42 1000 18