condition mean min max 3 h after light 40.79826666666667 35.5253 48.8789 6 h after light 34.9971 28.8709 44.2569 9 h after light 35.4405 31.1567 43.234 12 h after light 45.2504 33.6887 61.8085 3 h after dark 66.316 61.6121 73.2334 6 h after dark 58.08063333333333 53.3857 63.7716 9 h after dark 52.582366666666665 48.9276 59.3828 12 h after dark 54.57985 52.8883 56.2714