condition mean min max 4 h after light 8.214706666666666 8.1672 8.28267 8 h after light 8.12399 8.10675 8.14025 12 h after light 8.07462 7.976030000000001 8.13114 4 h after dark 8.078353333333332 7.97495 8.18038 8 h after dark 8.15968 8.07061 8.26458 12 h after dark 8.382216666666666 8.34326 8.44176