condition	mean	min	max
0 h after light	9.11534	8.59416	9.63652
4 h after light	7.05091	6.79752	7.3043
8 h after light	6.522460000000001	6.34022	6.7047
4 h after dark	6.5154250000000005	6.15564	6.87521
8 h after dark	9.55103	9.29787	9.80419
12 h after dark	9.2016	8.0363	10.3669