condition	mean	min	max
4 h after light	4.414535	2.66316	6.16591
8 h after light	2.5422085	0.629327	4.45509
12 h after light	4.34373	4.17244	4.51502
4 h after dark	4.68236	3.89435	5.47037
8 h after dark	5.347225	3.43227	7.26218
12 h after dark	8.419495	6.15529	10.6837