condition	mean	min	max
4 h after light	8.068375	6.15106	9.98569
8 h after light	8.06273	6.62101	9.50445
12 h after light	8.91343	8.23594	9.59092
4 h after dark	14.475666666666665	10.1001	16.8369
8 h after dark	9.9827	9.97383	9.98766
12 h after dark	11.9031	11.1231	12.3547