condition	mean	min	max
0 h after light	7.8991050000000005	7.68523	8.11298
4 h after light	5.963255	5.31044	6.61607
8 h after light	6.4201999999999995	6.01206	6.82834
4 h after dark	8.41103	8.31481	8.50725
8 h after dark	9.081195000000001	9.04409	9.1183
12 h after dark	7.863004999999999	7.65364	8.07237