condition mean min max 3 h after light 0.049324 0.0 0.147972 6 h after light 0.04343866666666666 0.0 0.130316 9 h after light 0.048907 0.0 0.146721 12 h after light 0.03452525 0.0 0.138101 3 h after dark 0.06388966666666666 0.0 0.191669 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0