condition	mean	min	max
0 h after light	7.725095	7.68214	7.76805
4 h after light	5.37948	4.76933	5.98963
8 h after light	4.5935749999999995	4.35921	4.82794
4 h after dark	8.96782	8.70513	9.23051
8 h after dark	7.931725	7.25822	8.60523
12 h after dark	7.57258	7.45924	7.68592