condition	mean	min	max
4 h after light	4.45955	4.17711	4.74199
8 h after light	2.344525	2.27381	2.41524
12 h after light	0.8916185	0.825637	0.9576
4 h after dark	1.640595	1.18872	2.09247
8 h after dark	1.514185	1.41353	1.61484
12 h after dark	2.658855	2.46845	2.84926