condition	mean	min	max
4 h after light	3.6141533333333333	2.12705	4.38223
8 h after light	2.127822	0.973816	3.12321
12 h after light	3.19277	1.79936	4.47288
4 h after dark	2.61184	2.35157	2.79792
8 h after dark	2.5611333333333333	1.84459	2.92891
12 h after dark	2.40079	2.07141	2.72702