condition	mean	min	max
4 h after light	4.0539966666666665	3.9931699999999997	4.08861
8 h after light	4.077023333333333	3.9950099999999997	4.15072
12 h after light	4.10831	4.03833	4.2458599999999995
4 h after dark	4.11064	4.07637	4.15131
8 h after dark	4.168306666666667	4.05647	4.33098
12 h after dark	4.10447	4.057519999999999	4.17895