condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.27066866666666667 0.0 0.812006 12 h after light 0.08513566666666667 0.0 0.255407 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0