condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0284338 0.0 0.0568676 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.023147933333333332 0.0 0.0694438 12 h after dark 0.0 0.0 0.0