condition	mean	min	max
4 h after light	6.199445	5.2631	7.13579
8 h after light	5.5409299999999995	4.40912	6.67274
12 h after light	7.330905	6.51195	8.14986
4 h after dark	13.198933333333333	10.6364	15.5567
8 h after dark	11.158303333333333	9.01541	13.5044
12 h after dark	8.97467	7.80641	11.2065