condition mean min max 4 h after light 1.72963 1.39195 2.06731 8 h after light 1.5686499999999999 1.52219 1.61511 12 h after light 1.525235 1.11444 1.93603 4 h after dark 2.2025300000000003 2.1701 2.23496 8 h after dark 1.9427050000000001 1.792 2.09341 12 h after dark 1.8121 1.44918 2.17502