condition	mean	min	max
0 h after light	8.912745000000001	8.84041	8.98508
4 h after light	10.531715	9.64633	11.4171
8 h after light	4.905385	4.56562	5.24515
4 h after dark	7.209435	7.19183	7.22704
8 h after dark	11.71045	10.8188	12.6021
12 h after dark	8.52044	8.42021	8.62067