condition	mean	min	max
0 h after light	2.143045	2.02841	2.25768
4 h after light	2.35088	1.43131	3.27045
8 h after light	2.29107	1.76535	2.81679
4 h after dark	2.07308	2.01106	2.1351
8 h after dark	2.18917	1.7138	2.66454
12 h after dark	2.077915	1.97076	2.18507