condition	mean	min	max
4 h after light	12.9	12.9	12.9
8 h after light	16.65	14.0	19.3
12 h after light	14.7	13.6	15.8
4 h after dark	13.7	12.1	15.3
8 h after dark	19.45	19.0	19.9
12 h after dark	52.9	23.8	82.0