condition mean min max 0 h after light 13.94625 13.8091 14.0834 2 h after light 12.5768 11.9892 13.1644 4 h after light 11.26 10.9787 11.5413 8 h after light 11.7595 10.5582 12.9608 12 h after light 20.60305 20.2442 20.9619 2 h after dark 17.4267 17.0101 17.8433 4 h after dark 13.9583 13.2723 14.6443 8 h after dark 15.31465 14.4421 16.1872 12 h after dark 14.7112 13.6543 15.7681