condition	mean	min	max
0 h after light	15.6874	15.1429	16.2319
4 h after light	15.033000000000001	14.4822	15.5838
8 h after light	20.5001	19.5765	21.4237
4 h after dark	19.7496	17.2519	22.2473
8 h after dark	20.8164	20.6042	21.0286
12 h after dark	15.1124	14.4973	15.7275