condition	mean	min	max
0 h after light	3.9912	3.60496	4.37744
4 h after light	5.118015	3.45057	6.78546
8 h after light	3.6596349999999997	2.78002	4.53925
4 h after dark	2.68794	2.46764	2.90824
8 h after dark	5.072545	3.79735	6.34774
12 h after dark	6.434165	6.10928	6.75905