condition mean min max 0 h after light 19.48565 17.958 21.0133 2 h after light 33.2763 33.2422 33.3104 4 h after light 14.9885 13.317 16.66 8 h after light 9.093905 8.86975 9.31806 12 h after light 17.2924 15.686 18.8988 2 h after dark 13.70335 11.9732 15.4335 4 h after dark 12.925 12.5322 13.3178 8 h after dark 22.8169 20.989 24.6448 12 h after dark 21.36535 19.4776 23.2531