condition mean min max 0 h after light 8.519 8.07009 8.96791 2 h after light 5.927004999999999 5.9112 5.94281 4 h after light 5.15436 5.01852 5.2902 8 h after light 5.14083 3.94309 6.33857 12 h after light 7.99197 7.71304 8.2709 2 h after dark 8.50836 7.7704 9.24632 4 h after dark 7.135565 6.00496 8.26617 8 h after dark 9.50872 9.3698 9.64764 12 h after dark 9.787455 9.71004 9.86487