condition mean min max 4 h after light 3.778862333333333 2.8370830000000002 5.606351999999999 8 h after light 2.634437666666667 1.485651 3.836754 12 h after light 3.0890523333333335 2.579899 3.4100610000000002 16 h after light 4.395354 2.6385959999999997 7.129208 4 h after dark 5.445365 4.08777 6.297703 8 h after dark 3.6071083333333336 1.9643150000000003 4.5176989999999995