condition	mean	min	max
4 h after light	21.94045	20.3304	23.5505
8 h after light	9.93272	9.28524	10.5802
12 h after light	2.50996	2.00004	3.01988
4 h after dark	6.766033333333334	6.02754	7.61598
8 h after dark	8.41628	7.98861	9.14362
12 h after dark	10.801966666666667	10.0074	12.3573