condition	mean	min	max
4 h after light	8.3908865	8.013891	8.767882
8 h after light	7.881209999999999	7.653101	8.109319
12 h after light	8.7388645	8.162529	9.3152
4 h after dark	7.813981999999999	7.47796	8.150004
8 h after dark	8.372366	7.710685	9.034047
12 h after dark	8.162529	8.162529	8.162529