condition	mean	min	max
4 h after light	6.16336	6.05921	6.31107
8 h after light	6.291573333333334	6.166440000000001	6.355630000000001
12 h after light	6.236879999999999	6.063969999999999	6.48515
4 h after dark	6.108923333333333	6.07639	6.15493
8 h after dark	6.1423700000000006	6.01125	6.37893
12 h after dark	6.198603333333334	6.170780000000001	6.24716