condition	mean	min	max
4 h after light	18.671100000000003	18.3519	18.9903
8 h after light	13.902000000000001	13.3922	14.4118
12 h after light	15.42315	14.5747	16.2716
4 h after dark	17.3462	15.6378	19.0546
8 h after dark	24.89085	24.2467	25.535
12 h after dark	21.924500000000002	21.3366	22.5124