condition	mean	min	max
4 h after light	6.7770600000000005	6.47063	7.08349
8 h after light	3.9700450000000003	3.58997	4.35012
12 h after light	3.6039250000000003	3.55411	3.65374
4 h after dark	3.525615	3.13272	3.91851
8 h after dark	4.733385	4.51153	4.95524
12 h after dark	6.30162	5.88211	6.72113