condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.039194 0.0 0.117582 9 h after light 0.0 0.0 0.0 12 h after light 0.02934625 0.0 0.117385 3 h after dark 0.14388700000000001 0.0 0.431661 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0554765 0.0 0.110953