condition	mean	min	max
3 h after light	8.421073333333334	7.76179	8.94555
6 h after light	5.97945	5.21212	6.51208
9 h after light	6.77707	6.63051	6.99188
12 h after light	10.13176	8.34838	11.8467
3 h after dark	14.426433333333334	13.2729	15.6423
6 h after dark	14.118433333333334	12.7436	15.4616
9 h after dark	12.647666666666668	12.2947	13.1903
12 h after dark	10.85256	9.36831	13.4094