condition	mean	min	max
4 h after light	9.587610000000002	8.38352	10.7917
8 h after light	7.29882	6.9759	7.62174
12 h after light	9.169245	8.9219	9.41659
4 h after dark	11.13157	8.34954	13.9136
8 h after dark	6.065284999999999	5.25631	6.87426
12 h after dark	5.581655	4.39562	6.76769