condition	mean	min	max
0 h after light	8.55254	8.48426	8.62082
4 h after light	6.26745	5.76322	6.77168
8 h after light	4.58544	4.27688	4.894
4 h after dark	7.972535000000001	7.38033	8.56474
8 h after dark	8.707635	7.98499	9.43028
12 h after dark	7.28643	6.90693	7.66593