condition mean min max 4 h after light 0.0248507 0.0 0.0497014 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.035307 0.0 0.105921 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0