condition mean min max 4 h after light 3.396636 3.2361459999999997 3.5621769999999997 8 h after light 2.964907 2.673157 3.5146580000000003 12 h after light 1.5701386666666668 1.3799620000000001 1.7239790000000002 16 h after light 3.5441936666666667 2.686458 4.130592 4 h after dark 2.7529653333333335 2.530506 3.167175 8 h after dark 1.6876616666666666 1.6559599999999999 1.7289299999999999