condition	mean	min	max
0 h after light	7.27724	6.72931	7.82517
4 h after light	13.3232	12.7407	13.9057
8 h after light	14.59305	13.6433	15.5428
4 h after dark	9.49191	8.42932	10.5545
8 h after dark	11.62505	11.1881	12.062
12 h after dark	9.202545	8.7959	9.60919