condition mean min max 4 h after light 11.2227505 10.763635 11.681866 8 h after light 10.643105 10.50291 10.7833 12 h after light 11.5044885 11.132269 11.876708 4 h after dark 10.628529499999999 10.402298 10.854761 8 h after dark 10.024520500000001 9.981403 10.067638 12 h after dark 10.829067 10.829067 10.829067