condition	mean	min	max
4 h after light	1.03904	0.0	2.07808
8 h after light	0.0	0.0	0.0
12 h after light	2.056275	0.0	4.11255
4 h after dark	2.7349	0.0	5.4698
8 h after dark	1.79341	1.78548	1.80134
12 h after dark	1.633265	1.49312	1.77341