condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.030086 0.0 0.090258 9 h after light 0.0 0.0 0.0 12 h after light 0.13140375 0.0 0.525615 3 h after dark 0.26124586666666666 0.0 0.686774 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0