condition	mean	min	max
0 h after light	8.041845	7.03992	9.04377
4 h after light	8.14321	7.59424	8.69218
8 h after light	8.348665	8.0936	8.60373
4 h after dark	7.867055000000001	6.83276	8.90135
8 h after dark	8.682504999999999	8.63703	8.72798
12 h after dark	7.524765	7.44402	7.60551