condition	mean	min	max
4 h after light	8.06736	7.88386	8.25086
8 h after light	4.09442	3.79416	4.39468
12 h after light	3.9736000000000002	3.86106	4.08614
4 h after dark	5.70136	5.23153	6.31185
8 h after dark	7.35905	6.42414	8.00164
12 h after dark	7.1619633333333335	5.92526	7.78791