condition	mean	min	max
4 h after light	8.03797	7.90821	8.24341
8 h after light	7.96513	7.8087100000000005	8.05071
12 h after light	7.87006	7.622719999999999	8.03686
4 h after dark	7.814793333333333	7.74688	7.85767
8 h after dark	7.842703333333334	7.66569	7.937360000000001
12 h after dark	7.95766	7.843489999999999	8.1196