condition mean min max 0 h after light 0.0 0.0 0.0 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 0.0266726 0.0 0.0533452 4 h after dark 0.02290285 0.0 0.0458057 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0