condition	mean	min	max
0 h after light	38.34585	37.2438	39.4479
4 h after light	15.62115	14.3139	16.9284
8 h after light	13.27225	10.4	16.1445
4 h after dark	23.67565	20.0682	27.2831
8 h after dark	27.30555	25.0157	29.5954
12 h after dark	32.27035	28.9719	35.5688