condition mean min max 4 h after light 1.5242666666666667 1.2832 1.75904 8 h after light 1.7258236666666669 0.608341 2.49284 12 h after light 1.2272020000000001 0.657278 2.07958 4 h after dark 2.42589 1.4731 2.94607 8 h after dark 1.98745 1.19049 3.04201 12 h after dark 0.6640593333333333 0.396762 1.15027