condition mean min max 4 h after light 12.2037245 10.564067 13.843382 8 h after light 11.792215 11.792215 11.792215 12 h after light 11.100855500000002 10.409496 11.792215 4 h after dark 12.1312615 11.074471 13.188052 8 h after dark 13.248761 12.992275 13.505247 12 h after dark 13.610357 13.610357 13.610357