condition	mean	min	max
4 h after light	17.456483	14.157928	20.755038
8 h after light	16.158938499999998	14.645995	17.671882
12 h after light	15.550787	15.074399	16.027175
4 h after dark	12.2200655	11.276823	13.163308
8 h after dark	12.0982115	11.256273	12.94015
12 h after dark	12.734094	12.734094	12.734094