condition	mean	min	max
0 h after light	15.1187	14.1436	16.0938
4 h after light	15.22785	15.1229	15.3328
8 h after light	14.74165	13.2782	16.2051
4 h after dark	18.98515	17.3468	20.6235
8 h after dark	17.32515	17.2237	17.4266
12 h after dark	15.28095	14.2155	16.3464