condition	mean	min	max
4 h after light	3.1024450000000003	2.19514	4.00975
8 h after light	4.12923	4.10755	4.15091
12 h after light	2.6543650000000003	2.29876	3.00997
4 h after dark	6.461774999999999	6.18697	6.73658
8 h after dark	4.22548	4.09501	4.35595
12 h after dark	3.93081	3.37777	4.48385