condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.1553385 0.0 0.310677 8 h after light 0.1206635 0.0 0.241327 4 h after dark 0.03006405 0.0 0.0601281 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0608995 0.0 0.121799