condition	mean	min	max
4 h after light	9.1798	8.0366	10.323
8 h after light	10.305299999999999	10.2402	10.3704
12 h after light	15.41605	15.3132	15.5189
4 h after dark	17.756700000000002	16.7345	18.7789
8 h after dark	14.1296	13.6889	14.5703
12 h after dark	12.5591	12.2193	12.8989