condition mean min max 3 h after light 45.2739 42.4786 48.0192 6 h after light 54.77766666666667 49.6347 60.2139 9 h after light 52.4643 50.8519 53.9882 12 h after light 65.029675 57.9852 79.5317 3 h after dark 91.2407 86.5683 94.9751 6 h after dark 81.61246666666666 78.0374 85.7002 9 h after dark 66.11733333333333 60.4984 71.1171 12 h after dark 72.21345 68.8378 75.5891