condition	mean	min	max
4 h after light	17.217271	12.102915	22.331627
8 h after light	20.1861165	15.273495	25.098738
12 h after light	24.449326	21.207243	27.691409
4 h after dark	16.088880500000002	14.082116	18.095645
8 h after dark	13.423216499999999	11.585203	15.26123
12 h after dark	12.032206	12.032206	12.032206