condition	mean	min	max
4 h after light	27.8806	26.594	29.1672
8 h after light	6.714635	6.27406	7.15521
12 h after light	2.828355	2.55754	3.09917
4 h after dark	6.71557	5.83286	7.17298
8 h after dark	12.4948	11.8927	13.6051
12 h after dark	24.2553	21.2294	28.8905