condition	mean	min	max
4 h after light	13.7987	13.4837	14.1137
8 h after light	18.399	17.9468	18.8512
12 h after light	17.91125	17.1834	18.6391
4 h after dark	21.8355	20.4043	23.2667
8 h after dark	16.851300000000002	16.7113	16.9913
12 h after dark	17.211599999999997	16.9	17.5232