condition	mean	min	max
4 h after light	9.421595	9.06147	9.78172
8 h after light	6.455615	6.21212	6.69911
12 h after light	7.55359	6.5349	8.57228
4 h after dark	10.4062	10.0472	10.7652
8 h after dark	9.002455000000001	8.81226	9.19265
12 h after dark	9.78045	9.68747	9.87343