condition	mean	min	max
4 h after light	5.73636	5.64662	5.8261
8 h after light	6.145005	5.65026	6.63975
12 h after light	7.783	7.44092	8.12508
4 h after dark	7.1537500000000005	7.00443	7.30307
8 h after dark	8.90206	8.77533	9.02879
12 h after dark	6.91527	6.8154	7.01514