condition	mean	min	max
4 h after light	8.4876295	8.22657	8.748689
8 h after light	7.791017	7.426268	8.155766
12 h after light	7.8618895	7.616749	8.10703
4 h after dark	7.469686	7.461412	7.47796
8 h after dark	8.723532	8.40276	9.044304
12 h after dark	8.726979	8.726979	8.726979