condition	mean	min	max
4 h after light	1.933065	1.56294	2.30319
8 h after light	1.250645	1.23702	1.26427
12 h after light	1.859245	1.85431	1.86418
4 h after dark	3.48457	2.92847	3.78263
8 h after dark	3.93023	2.94157	4.88424
12 h after dark	1.66716	1.56962	1.72249