condition	mean	min	max
4 h after light	18.057850000000002	17.0157	19.1
8 h after light	10.19515	10.0494	10.3409
12 h after light	12.27275	11.333	13.2125
4 h after dark	18.38035	18.1029	18.6578
8 h after dark	21.53815	20.9354	22.1409
12 h after dark	20.5611	20.4652	20.657