condition	mean	min	max
4 h after light	20.519399999999997	19.4133	21.6255
8 h after light	14.033000000000001	13.7186	14.3474
12 h after light	13.099	12.9305	13.2675
4 h after dark	17.4761	17.1736	17.9067
8 h after dark	16.403966666666665	14.1231	18.6511
12 h after dark	20.199833333333334	19.4323	21.2452