condition	mean	min	max
0 h after light	3.27227	3.13401	3.41053
4 h after light	3.293275	3.23113	3.35542
8 h after light	1.978045	1.87851	2.07758
4 h after dark	3.162885	2.89051	3.43526
8 h after dark	3.84656	3.76043	3.93269
12 h after dark	3.234725	3.05037	3.41908