condition mean min max 0 h after light 21.66705 21.36 21.9741 2 h after light 13.25515 12.3534 14.1569 4 h after light 20.8335 20.5374 21.1296 8 h after light 31.274749999999997 28.1138 34.4357 12 h after light 20.2348 19.7418 20.7278 2 h after dark 28.1042 24.8039 31.4045 4 h after dark 29.2164 27.358 31.0748 8 h after dark 30.8029 29.8259 31.7799 12 h after dark 20.1002 19.8933 20.3071