condition mean min max 4 h after light 12.7042 12.5186 12.8898 8 h after light 12.34025 11.8524 12.8281 12 h after light 12.90405 11.8019 14.0062 4 h after dark 8.55744 8.08518 9.07826 8 h after dark 10.28497 9.47371 10.8895 12 h after dark 11.320033333333333 11.0313 11.5847