condition	mean	min	max
0 h after light	17.670699999999997	17.2507	18.0907
4 h after light	12.96795	11.4458	14.4901
8 h after light	12.48695	11.581	13.3929
4 h after dark	18.0484	13.9668	22.13
8 h after dark	20.429850000000002	19.8179	21.0418
12 h after dark	17.48735	17.2948	17.6799