condition	mean	min	max
4 h after light	16.357300000000002	16.1646	16.55
8 h after light	12.8566	12.7788	12.9344
12 h after light	13.5656	12.4552	14.676
4 h after dark	17.65585	16.0986	19.2131
8 h after dark	19.176650000000002	18.2279	20.1254
12 h after dark	17.89845	17.3348	18.4621