condition	mean	min	max
0 h after light	4.430635	3.80967	5.0516
4 h after light	4.783155	4.47694	5.08937
8 h after light	2.47357	2.19555	2.75159
4 h after dark	4.051325	3.12173	4.98092
8 h after dark	3.676595	3.60782	3.74537
12 h after dark	3.72684	3.62773	3.82595