condition	mean	min	max
4 h after light	15.969393	15.541453	16.397333
8 h after light	16.4043415	14.542249	18.266434
12 h after light	17.740884	17.466368	18.0154
4 h after dark	19.440004000000002	17.451374	21.428634
8 h after dark	28.717900999999998	24.534978	32.900824
12 h after dark	15.996883	15.996883	15.996883