condition	mean	min	max
0 h after light	7.2479949999999995	6.79112	7.70487
4 h after light	6.16022	4.51756	7.80288
8 h after light	7.732805	6.93028	8.53533
4 h after dark	9.23611	8.62065	9.85157
8 h after dark	8.859034999999999	8.50645	9.21162
12 h after dark	5.952025	5.80147	6.10258