condition	mean	min	max
4 h after light	2.07326	2.0652	2.08132
8 h after light	7.688269999999999	7.66386	7.71268
12 h after light	19.795	19.7508	19.8392
4 h after dark	16.24135	16.0458	16.4369
8 h after dark	9.303640000000001	9.05033	9.55695
12 h after dark	4.77942	4.48413	5.07471