17 18 1-2 18 19 1-2 19 19.20 20 -20 20.21 21 22 22 1-2 22.23 23 1-2 23 23.5 24 1-2 24 25 25.26 26 27 1-2 27 27.28 27.5 28 28 1-2 28.29 29 1-2 29-30 29 29.5 30 31 31 1-2 31-32 32 32.33 33 33.34 33.5 34 34.35 35 35 1-2 36 36 1-2 37 38 39 40