condition mean min max 3 h after light 2.493866666666667 2.20512 2.79537 6 h after light 2.54982 1.74596 3.12063 9 h after light 2.87643 2.43544 3.1231 12 h after light 2.873565 2.2821 3.36692 3 h after dark 4.218383333333334 3.8514 4.6219 6 h after dark 2.929813333333333 2.26242 4.0629 9 h after dark 2.59478 2.14881 2.82944 12 h after dark 2.76987 2.28852 3.25122