condition	mean	min	max
4 h after light	19.245350000000002	17.2851	21.2056
8 h after light	17.507350000000002	17.4621	17.5526
12 h after light	19.8146	19.1649	20.4643
4 h after dark	22.564700000000002	20.9922	24.1372
8 h after dark	23.26925	22.7711	23.7674
12 h after dark	24.34055	24.1662	24.5149