condition	mean	min	max
4 h after light	18.844450000000002	18.4386	19.2503
8 h after light	17.3781	16.18	18.5762
12 h after light	22.1492	20.3076	23.9908
4 h after dark	27.78785	27.0096	28.5661
8 h after dark	21.725499999999997	21.3527	22.0983
12 h after dark	21.06975	19.6996	22.4399