condition mean min max 4 h after light 1.67187 1.13374 2.21 8 h after light 1.3871250000000002 1.32478 1.44947 12 h after light 1.7679900000000002 1.71455 1.82143 4 h after dark 2.70164 2.41722 2.98382 8 h after dark 2.4471933333333333 2.07867 3.01085 12 h after dark 1.7091533333333333 1.31885 2.20579