condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.030528633333333333 0.0 0.0915859 9 h after dark 0.03885966666666667 0.0 0.116579 12 h after dark 0.060596199999999996 0.0 0.106738