condition mean min max 0 h after light 1.17171 1.17067 1.17275 4 h after light 3.366655 3.15485 3.57846 8 h after light 3.16729 2.86 3.47458 4 h after dark 4.03167 3.84762 4.21572 8 h after dark 1.54376 1.53728 1.55024 12 h after dark 2.1915649999999998 1.71467 2.66846