condition mean min max 2 h after light 0.021573 0.0 0.129438 6 h after light 0.0144294 0.0 0.0865764 10 h after light 0.014342733333333335 0.0 0.0860564 14 h after light 0.0481705 0.0 0.17986 18 h after light 0.02958356666666667 0.0 0.0938443 2 h after dark 0.014405166666666665 0.0 0.086431