condition	mean	min	max
4 h after light	0.0	0.0	0.0
8 h after light	4.146325	3.54494	4.74771
12 h after light	0.0	0.0	0.0
4 h after dark	3.78418	0.0	7.56836
8 h after dark	2.844535	0.0	5.68907
12 h after dark	3.438835	3.14375	3.73392