condition	mean	min	max
4 h after light	15.0579	12.4464	17.6694
8 h after light	11.9713	11.0787	12.8639
12 h after light	9.0426	8.64219	9.44301
4 h after dark	19.01715	15.8684	22.1659
8 h after dark	13.3208	12.138	14.5036
12 h after dark	15.72025	14.9722	16.4683