condition	mean	min	max
4 h after light	12.8249	11.771	13.8788
8 h after light	9.204395	9.08152	9.32727
12 h after light	13.753	13.0286	14.4774
4 h after dark	19.371033333333333	18.4371	21.2142
8 h after dark	21.364633333333334	19.0038	24.7459
12 h after dark	19.6689	18.6079	20.9285