condition	mean	min	max
4 h after light	7.423533333333333	7.35048	7.47135
8 h after light	7.327613333333333	7.25875	7.3969
12 h after light	7.39707	7.2995600000000005	7.476660000000001
4 h after dark	7.3688	7.1555100000000005	7.47935
8 h after dark	7.382873333333333	7.1326600000000004	7.673360000000001
12 h after dark	7.601883333333333	7.490130000000001	7.69752