condition	mean	min	max
4 h after light	20.01165	16.9668	23.0565
8 h after light	15.4791	14.0654	16.8928
12 h after light	17.701900000000002	17.6652	17.7386
4 h after dark	53.13315	45.2982	60.9681
8 h after dark	44.1416	43.5537	44.7295
12 h after dark	42.8727	40.9797	44.7657