condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.08047 0.0 0.16094 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.087129 0.0 0.174258 12 h after dark 0.1714895 0.0 0.342979