condition mean min max 0 h after light 0.209191 0.0 0.418382 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.206264 0.0 0.412528 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0