condition	mean	min	max
4 h after light	17.808349999999997	17.2517	18.365
8 h after light	14.9832	14.9586	15.0078
12 h after light	21.8922	21.8356	21.9488
4 h after dark	42.989599999999996	41.2746	44.7046
8 h after dark	45.910849999999996	45.1849	46.6368
12 h after dark	39.4392	38.6253	40.2531