condition	mean	min	max
0 h after light	0.0	0.0	0.0
4 h after light	3.13467	0.0	6.26934
8 h after light	12.3506	12.1747	12.5265
4 h after dark	6.05486	6.04292	6.0668
8 h after dark	3.05545	0.0	6.1109
12 h after dark	6.077705	6.01078	6.14463