condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.355114 0.0 0.710228 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.344299 0.0 0.688598 8 h after dark 0.3743965 0.0 0.748793 12 h after dark 0.0 0.0 0.0