condition mean min max 4 h after light 11.5233595 10.829067 12.217652 8 h after light 11.1284575 11.115271 11.141644 12 h after light 9.898376500000001 9.387257 10.409496 4 h after dark 10.576918 10.485817 10.668019 8 h after dark 10.729081 10.279123 11.179039 12 h after dark 11.643052 11.643052 11.643052