condition	mean	min	max
4 h after light	4081.371111	3719.743333	4678.88
8 h after light	7042.867222333333	5284.726667	7939.855
12 h after light	9870.410001333334	8573.566667	11912.60667
1.5 h after dark	7127.738889	5719.26	8398.386667
5.5 h after dark	4864.3133333333335	4026.12	5777.603333
9.5 h after dark	3404.097778	3133.316667	3640.92