condition	mean	min	max
4 h after light	15.0075	13.386	16.629
8 h after light	10.3276	10.2475	10.4077
12 h after light	8.012464999999999	7.0555	8.96943
4 h after dark	12.6142	11.1898	14.0386
8 h after dark	14.89585	14.6708	15.1209
12 h after dark	16.705199999999998	16.3707	17.0397