condition	mean	min	max
4 h after light	8.220472000000001	7.723269	8.717675
8 h after light	7.8895525	7.630912	8.148193
12 h after light	9.151448	9.003938	9.298958
4 h after dark	8.992762500000001	8.169734	9.815791
8 h after dark	8.868568	8.7365	9.000636
12 h after dark	8.461084	8.461084	8.461084