condition mean min max 0 h after light 0.079464 0.0765355 0.0823925 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 0.03939725 0.0 0.0787945 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0430424 0.0 0.0860848 12 h after dark 0.0 0.0 0.0