condition	mean	min	max
4 h after light	14.54065	12.2437	16.8376
8 h after light	14.271049999999999	13.2557	15.2864
12 h after light	16.840899999999998	16.0517	17.6301
4 h after dark	19.5504	18.3618	20.392
8 h after dark	18.477966666666667	17.1514	20.7458
12 h after dark	14.558066666666667	13.3156	16.2429