condition mean min max 0 h after light 0.0520325 0.0 0.104065 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 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 0.05001 0.0 0.10002 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0534165 0.0 0.106833