condition	mean	min	max
0 h after light	5.71964	4.47651	6.96277
4 h after light	5.50359	2.76074	8.24644
8 h after light	6.708905	4.67673	8.74108
4 h after dark	20.10755	17.307	22.9081
8 h after dark	10.248005	9.12591	11.3701
12 h after dark	6.316815	4.11756	8.51607