condition	mean	min	max
4 h after light	3.93225	3.8893699999999995	3.99798
8 h after light	3.8627800000000003	3.83175	3.9027300000000005
12 h after light	3.7861333333333334	3.75779	3.81265
4 h after dark	3.8655833333333334	3.81227	3.90849
8 h after dark	3.8333999999999997	3.7867599999999997	3.87733
12 h after dark	3.8467333333333333	3.76615	3.8945