condition	mean	min	max
4 h after light	7.446785	6.59592	8.29765
8 h after light	8.543855	8.28574	8.80197
12 h after light	9.50506	9.3046	9.70552
4 h after dark	11.636600000000001	10.9305	12.3427
8 h after dark	10.52595	10.4443	10.6076
12 h after dark	10.325800000000001	10.02	10.6316