condition	mean	min	max
4 h after light	1.825575	1.63706	2.01409
8 h after light	2.27955	2.11788	2.44122
12 h after light	2.69989	2.64356	2.75622
4 h after dark	3.23795	3.19586	3.28004
8 h after dark	2.740865	2.64666	2.83507
12 h after dark	2.314265	2.01137	2.61716