condition	mean	min	max
4 h after light	4.31991	4.18773	4.45209
8 h after light	8.407605	7.30299	9.51222
12 h after light	13.174	13.0974	13.2506
4 h after dark	20.5035	18.3056	22.7014
8 h after dark	15.230699999999999	15.1633	15.2981
12 h after dark	7.4071750000000005	7.09245	7.7219