condition	mean	min	max
0 h after light	5.754435	5.57225	5.93662
4 h after light	6.45695	6.39505	6.51885
8 h after light	8.651205000000001	8.0851	9.21731
4 h after dark	11.446200000000001	11.148	11.7444
8 h after dark	11.29735	10.8928	11.7019
12 h after dark	7.226215	6.94859	7.50384