condition mean min max 0 h after light 0.995955 0.95354 1.03837 4 h after light 1.8642349999999999 1.85154 1.87693 8 h after light 0.959022 0.684874 1.23317 4 h after dark 1.874025 1.52972 2.21833 8 h after dark 2.43961 2.301 2.57822 12 h after dark 1.369465 1.18346 1.55547