19 21 20.21 18 19.20 -20 20 22 22.23 23 23.24 23.5 24 24.5 25 25.5 26 26.5 27 27.28 27.5 28 28.29 29 29-30 30 31-32 31 32 33-34 33 33.34 33.5 34 35 35.5 36 37 38 39 40