condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.150171 0.0 0.300342 4 h after dark 0.1454985 0.0 0.290997 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0