condition mean min max 0 h after light 1.43107 1.34816 1.51398 4 h after light 1.94008 1.80696 2.0732 8 h after light 1.1857099999999998 1.00152 1.3699 4 h after dark 1.573445 1.15649 1.9904 8 h after dark 1.164615 1.15973 1.1695 12 h after dark 1.538395 1.39685 1.67994