condition mean min max 4 h after light 5.741185 4.9767 6.50567 8 h after light 6.6067149999999994 6.04999 7.16344 12 h after light 7.263515 5.85146 8.67557 4 h after dark 9.1832 8.97735 9.30534 8 h after dark 9.571653333333332 8.69892 10.8509 12 h after dark 7.985206666666667 7.19155 9.43714