condition	mean	min	max
0 h after light	6.119895	6.11444	6.12535
4 h after light	3.784775	3.78259	3.78696
8 h after light	3.84363	3.41717	4.27009
4 h after dark	5.056265	4.49211	5.62042
8 h after dark	5.45197	4.88198	6.02196
12 h after dark	5.638920000000001	4.33351	6.94433