condition	mean	min	max
0 h after light	3.535465	3.29194	3.77899
4 h after light	1.728035	1.67413	1.78194
8 h after light	0.5736355	0.334503	0.812768
4 h after dark	1.778865	1.61367	1.94406
8 h after dark	2.44092	1.61819	3.26365
12 h after dark	1.781685	1.47675	2.08662