condition	mean	min	max
4 h after light	16.3752	13.4599	19.2905
8 h after light	11.3303	10.9165	11.7441
12 h after light	11.597650000000002	11.0325	12.1628
4 h after dark	17.1252	15.7275	17.9068
8 h after dark	18.0572	16.7785	18.9173
12 h after dark	19.307566666666666	16.817	20.6558