condition	mean	min	max
4 h after light	9.1885875	8.552776	9.824399
8 h after light	7.6066375	7.19734	8.015935
12 h after light	8.172220500000002	8.015199	8.329242
4 h after dark	9.119764	8.77642	9.463108
8 h after dark	9.171211	8.601087	9.741335
12 h after dark	7.92167	7.92167	7.92167