condition	mean	min	max
0 h after light	9.386535	9.0877	9.68537
4 h after light	9.786355	9.07851	10.4942
8 h after light	12.5948	12.4838	12.7058
4 h after dark	16.2776	15.7421	16.8131
8 h after dark	11.26215	10.4999	12.0244
12 h after dark	13.2333	12.8738	13.5928