condition	mean	min	max
4 h after light	2.889	1.8704	4.02119
8 h after light	9.19459	3.79732	14.955
12 h after light	8.389193333333333	5.37457	10.4765
4 h after dark	10.468936666666666	9.14163	12.9766
8 h after dark	4.97289	3.91704	6.26265
12 h after dark	3.42038	2.94433	4.32549