condition mean min max 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 4 h after dark 0.051392 0.0 0.102784 8 h after dark 0.0 0.0 0.0 12 h after dark 0.04208625 0.0 0.0841725