condition	mean	min	max
4 h after light	3.429205	3.29764	3.56077
8 h after light	3.803315	3.60619	4.00044
12 h after light	3.67096	3.48965	3.85227
4 h after dark	4.422105	3.99892	4.84529
8 h after dark	3.103675	3.10019	3.10716
12 h after dark	3.85934	3.72751	3.99117