condition	mean	min	max
0 h after light	6.541495	6.16251	6.92048
4 h after light	6.719695	6.61618	6.82321
8 h after light	16.975949999999997	16.9056	17.0463
4 h after dark	17.401400000000002	16.1746	18.6282
8 h after dark	11.9149	11.7804	12.0494
12 h after dark	8.971685	7.59377	10.3496