condition mean min max 0 h after light 55.49025 54.842 56.1385 4 h after light 50.81325 47.7519 53.8746 8 h after light 71.01400000000001 69.224 72.804 4 h after dark 92.7301 91.0754 94.3848 8 h after dark 76.72515 76.4032 77.0471 12 h after dark 71.66045 68.5102 74.8107