condition	mean	min	max
4 h after light	15.239999999999998	14.0359	16.4441
8 h after light	17.826999999999998	17.5748	18.0792
12 h after light	20.247300000000003	19.5609	20.9337
4 h after dark	22.44235	22.2967	22.588
8 h after dark	21.504649999999998	20.7376	22.2717
12 h after dark	19.052300000000002	19.0314	19.0732