condition	mean	min	max
4 h after light	18.8461	18.8183	18.8739
8 h after light	15.164549999999998	14.0343	16.2948
12 h after light	26.89935	26.2704	27.5283
4 h after dark	49.445350000000005	47.1959	51.6948
8 h after dark	39.547	39.2295	39.8645
12 h after dark	32.62215	32.2711	32.9732