condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0560375 0.0 0.112075 4 h after dark 0.0279241 0.0 0.0558482 8 h after dark 0.056254 0.0 0.112508 12 h after dark 0.0 0.0 0.0