condition	mean	min	max
0 h after light	21.659	19.8632	23.4548
4 h after light	10.5641	10.5594	10.5688
8 h after light	8.67791	8.19352	9.1623
4 h after dark	19.4222	18.9909	19.8535
8 h after dark	21.56485	20.8018	22.3279
12 h after dark	19.462000000000003	18.8728	20.0512