condition	mean	min	max
4 h after light	16.6813	15.1871	18.1755
8 h after light	14.14305	12.8313	15.4548
12 h after light	31.1211	31.1105	31.1317
4 h after dark	50.84915	47.0013	54.697
8 h after dark	55.1701	54.2675	56.0727
12 h after dark	41.4919	41.3622	41.6216