condition mean min max 4 h after light 95.994145 95.401637 96.586653 8 h after light 83.0294495 78.027617 88.031282 12 h after light 210.2320565 139.770518 280.693595 4 h after dark 179.8318355 177.719739 181.943932 8 h after dark 332.8706385 322.984673 342.756604 12 h after dark 220.564033 220.564033 220.564033