condition	mean	min	max
4 h after light	19.83745	17.8059	21.869
8 h after light	12.87395	12.214	13.5339
12 h after light	11.1005	10.6576	11.5434
4 h after dark	12.2277	12.1287	12.4056
8 h after dark	13.900566666666666	13.52	14.3128
12 h after dark	15.841166666666666	15.1922	17.0812