condition	mean	min	max
0 h after light	1.913985	1.76506	2.06291
4 h after light	2.26863	2.0303	2.50696
8 h after light	2.53703	2.46064	2.61342
4 h after dark	2.684155	2.58418	2.78413
8 h after dark	2.697445	2.60297	2.79192
12 h after dark	1.65351	1.41079	1.89623